123530513355522 has 96 divisors (see below), whose sum is σ = 329417839820160. Its totient is φ = 32579165744640.

The previous prime is 123530513355521. The next prime is 123530513355547. The reversal of 123530513355522 is 225553315035321.

123530513355522 is a `hidden beast` number, since 1 + 2 + 3 + 5 + 30 + 513 + 3 + 55 + 52 + 2 = 666.

It is a super-4 number, since 4×123530513355522⁴ (a number of 57 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (123530513355521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 208862554 + ... + 209453162.

It is an arithmetic number, because the mean of its divisors is an integer number (3431435831460).

Almost surely, 2^{123530513355522} is an apocalyptic number.

123530513355522 is an abundant number, since it is smaller than the sum of its proper divisors (205887326464638).

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

123530513355522 is a wasteful number, since it uses less digits than its factorization.

123530513355522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 718328 (or 718325 counting only the distinct ones).

The product of its (nonzero) digits is 2025000, while the sum is 45.

The spelling of 123530513355522 in words is "one hundred twenty-three trillion, five hundred thirty billion, five hundred thirteen million, three hundred fifty-five thousand, five hundred twenty-two".