105423010012520 has 64 divisors (see below), whose sum is σ = 238228125408000. Its totient is φ = 41986753919488.

The previous prime is 105423010012513. The next prime is 105423010012543. The reversal of 105423010012520 is 25210010324501.

It is a super-2 number, since 2×105423010012520² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 105423010012520.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 289474301 + ... + 289838259.

It is an arithmetic number, because the mean of its divisors is an integer number (3722314459500).

Almost surely, 2^{105423010012520} is an apocalyptic number.

105423010012520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

105423010012520 is an abundant number, since it is smaller than the sum of its proper divisors (132805115395480).

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

105423010012520 is a wasteful number, since it uses less digits than its factorization.

105423010012520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 395282 (or 395278 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 26.

The spelling of 105423010012520 in words is "one hundred five trillion, four hundred twenty-three billion, ten million, twelve thousand, five hundred twenty".