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120121232230 = 2537157213171
BaseRepresentation
bin110111111011111001…
…0001000101101100110
3102111001110021211212001
41233313302020231212
53432002013412410
6131103302515514
711451500425066
oct1576762105546
9374043254761
10120121232230
1146a4133874a
121b344435b9a
13b43435310c
145b574a33a6
1531d095133a
hex1bf7c88b66

120121232230 has 48 divisors (see below), whose sum is σ = 223502337936. Its totient is φ = 46448588160.

The previous prime is 120121232221. The next prime is 120121232249. The reversal of 120121232230 is 32232121021.

It is a super-2 number, since 2×1201212322302 (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 120121232198 and 120121232207.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9113545 + ... + 9126715.

It is an arithmetic number, because the mean of its divisors is an integer number (4656298707).

Almost surely, 2120121232230 is an apocalyptic number.

120121232230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

120121232230 is a deficient number, since it is larger than the sum of its proper divisors (103381105706).

120121232230 is a wasteful number, since it uses less digits than its factorization.

120121232230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13529 (or 13372 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 120121232230 its reverse (32232121021), we get a palindrome (152353353251).

The spelling of 120121232230 in words is "one hundred twenty billion, one hundred twenty-one million, two hundred thirty-two thousand, two hundred thirty".

Divisors: 1 2 5 10 37 74 157 185 314 370 785 1570 5809 11618 13171 24649 26342 29045 49298 58090 65855 123245 131710 246490 487327 912013 974654 1824026 2067847 2436635 4135694 4560065 4873270 9120130 10339235 20678470 76510339 153020678 324651979 382551695 649303958 765103390 1623259895 3246519790 12012123223 24024246446 60060616115 120121232230