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203112011011030 = 251117809891341121
BaseRepresentation
bin101110001011101010110011…
…010001000001001111010110
3222122011022121021101020220121
4232023222303101001033112
5203110241344304323110
61555552211505422154
760532233656414152
oct5613526321011726
9878138537336817
10203112011011030
1159799358107520
121a94457563a95a
1389444c3b19b24
143822960c24062
151873622215cda
hexb8bab34413d6

203112011011030 has 64 divisors (see below), whose sum is σ = 422304726392640. Its totient is φ = 69513360998400.

The previous prime is 203112011011009. The next prime is 203112011011073. The reversal of 203112011011030 is 30110110211302.

It is a happy number.

203112011011030 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 203112011010995 and 203112011011013.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 150778870 + ... + 152119990.

It is an arithmetic number, because the mean of its divisors is an integer number (6598511349885).

Almost surely, 2203112011011030 is an apocalyptic number.

203112011011030 is an abundant number, since it is smaller than the sum of its proper divisors (219192715381610).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

203112011011030 is a wasteful number, since it uses less digits than its factorization.

203112011011030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1422145.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 203112011011030 its reverse (30110110211302), we get a palindrome (233222121222332).

The spelling of 203112011011030 in words is "two hundred three trillion, one hundred twelve billion, eleven million, eleven thousand, thirty".

Divisors: 1 2 5 10 11 17 22 34 55 85 110 170 187 374 935 1870 80989 161978 404945 809890 890879 1341121 1376813 1781758 2682242 2753626 4454395 6705605 6884065 8908790 13411210 13768130 14752331 15144943 22799057 29504662 30289886 45598114 73761655 75724715 113995285 147523310 151449430 227990570 250789627 501579254 1253948135 2507896270 108616048669 217232097338 543080243345 1086160486690 1194776535359 1846472827373 2389553070718 3692945654746 5973882676795 9232364136865 11947765353590 18464728273730 20311201101103 40622402202206 101556005505515 203112011011030