20131311425412 has 48 divisors (see below), whose sum is σ = 51270610406400. Its totient is φ = 6097150707360.

The previous prime is 20131311425383. The next prime is 20131311425413. The reversal of 20131311425412 is 21452411313102.

It is a self number, because there is not a number n which added to its sum of digits gives 20131311425412.

It is not an unprimeable number, because it can be changed into a prime (20131311425413) by changing a digit.

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, 40334712 + ... + 40830767.

It is an arithmetic number, because the mean of its divisors is an integer number (1068137716800).

Almost surely, 2^{20131311425412} is an apocalyptic number.

20131311425412 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20131311425412 is an abundant number, since it is smaller than the sum of its proper divisors (31139298980988).

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

20131311425412 is a wasteful number, since it uses less digits than its factorization.

20131311425412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81167376 (or 81167374 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 30.

Adding to 20131311425412 its reverse (21452411313102), we get a palindrome (41583722738514).

The spelling of 20131311425412 in words is "twenty trillion, one hundred thirty-one billion, three hundred eleven million, four hundred twenty-five thousand, four hundred twelve".