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1030101311220 = 223517168355187
BaseRepresentation
bin11101111110101101101…
…00101001111011110100
310122110212112100110201120
432333112310221323310
5113334121413424340
62105115542023540
7134264604450612
oct16772664517364
93573775313646
101030101311220
11367955376603
12147782a17bb0
13761a46431b7
1437c001046b2
151bbde2034d0
hexefd6d29ef4

1030101311220 has 24 divisors (see below), whose sum is σ = 2884283671584. Its totient is φ = 274693682976.

The previous prime is 1030101311207. The next prime is 1030101311227. The reversal of 1030101311220 is 221131010301.

It is a happy number.

It is a super-2 number, since 2×10301013112202 (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 1030101311220.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1030101311227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8584177534 + ... + 8584177653.

It is an arithmetic number, because the mean of its divisors is an integer number (120178486316).

Almost surely, 21030101311220 is an apocalyptic number.

1030101311220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1030101311220 is an abundant number, since it is smaller than the sum of its proper divisors (1854182360364).

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

1030101311220 is a wasteful number, since it uses less digits than its factorization.

1030101311220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17168355199 (or 17168355197 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 1030101311220 its reverse (221131010301), we get a palindrome (1251232321521).

The spelling of 1030101311220 in words is "one trillion, thirty billion, one hundred one million, three hundred eleven thousand, two hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 17168355187 34336710374 51505065561 68673420748 85841775935 103010131122 171683551870 206020262244 257525327805 343367103740 515050655610 1030101311220