2131431004012 has 24 divisors (see below), whose sum is σ = 3948360570000. Its totient is φ = 1005037231296.

The previous prime is 2131431003973. The next prime is 2131431004019. The reversal of 2131431004012 is 2104001341312.

It is a super-2 number, since 2×2131431004012² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2131431004019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 213650887 + ... + 213660862.

It is an arithmetic number, because the mean of its divisors is an integer number (164515023750).

Almost surely, 2^{2131431004012} is an apocalyptic number.

It is an amenable number.

2131431004012 is a deficient number, since it is larger than the sum of its proper divisors (1816929565988).

2131431004012 is a wasteful number, since it uses less digits than its factorization.

2131431004012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427311825 (or 427311823 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 2131431004012 its reverse (2104001341312), we get a palindrome (4235432345324).

The spelling of 2131431004012 in words is "two trillion, one hundred thirty-one billion, four hundred thirty-one million, four thousand, twelve".