20312460145024 has 128 divisors (see below), whose sum is σ = 42400812888000. Its totient is φ = 9674433331200.

The previous prime is 20312460144979. The next prime is 20312460145049. The reversal of 20312460145024 is 42054106421302.

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-2 number, since 2×20312460145024² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 723647662 + ... + 723675730.

Almost surely, 2^{20312460145024} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20312460145024, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21200406444000).

20312460145024 is an abundant number, since it is smaller than the sum of its proper divisors (22088352742976).

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

20312460145024 is a wasteful number, since it uses less digits than its factorization.

20312460145024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29116 (or 29104 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 34.

Adding to 20312460145024 its reverse (42054106421302), we get a palindrome (62366566566326).

The spelling of 20312460145024 in words is "twenty trillion, three hundred twelve billion, four hundred sixty million, one hundred forty-five thousand, twenty-four".