2131203213012 has 24 divisors (see below), whose sum is σ = 4972839622912. Its totient is φ = 710396481600.

The previous prime is 2131203212939. The next prime is 2131203213067. The reversal of 2131203213012 is 2103123021312.

It is a super-2 number, since 2×2131203213012² (a number of 25 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 2131203213012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1731837 + ... + 2694747.

Almost surely, 2^{2131203213012} is an apocalyptic number.

It is an amenable number.

2131203213012 is an abundant number, since it is smaller than the sum of its proper divisors (2841636409900).

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

2131203213012 is a wasteful number, since it uses less digits than its factorization.

2131203213012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1147359 (or 1147357 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 2131203213012 its reverse (2103123021312), we get a palindrome (4234326234324).

The spelling of 2131203213012 in words is "two trillion, one hundred thirty-one billion, two hundred three million, two hundred thirteen thousand, twelve".