12431135540120 has 64 divisors (see below), whose sum is σ = 30513298717440. Its totient is φ = 4520337148800.

The previous prime is 12431135540107. The next prime is 12431135540141. The reversal of 12431135540120 is 2104553113421.

It is a super-2 number, since 2×12431135540120² (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, 30599525 + ... + 31003115.

It is an arithmetic number, because the mean of its divisors is an integer number (476770292460).

Almost surely, 2^{12431135540120} is an apocalyptic number.

12431135540120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12431135540120 is an abundant number, since it is smaller than the sum of its proper divisors (18082163177320).

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

12431135540120 is a wasteful number, since it uses less digits than its factorization.

12431135540120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 473616 (or 473612 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 32.

Adding to 12431135540120 its reverse (2104553113421), we get a palindrome (14535688653541).

The spelling of 12431135540120 in words is "twelve trillion, four hundred thirty-one billion, one hundred thirty-five million, five hundred forty thousand, one hundred twenty".