2131231002202 has 8 divisors (see below), whose sum is σ = 3197360401812. Its totient is φ = 1065444201600.

The previous prime is 2131231002191. The next prime is 2131231002209. The reversal of 2131231002202 is 2022001321312.

It can be written as a sum of positive squares in 2 ways, for example, as 1281421736001 + 849809266201 = 1131999^2 + 921851^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 2131231002202.

It is not an unprimeable number, because it can be changed into a prime (2131231002209) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85634199 + ... + 85659082.

Almost surely, 2^{2131231002202} is an apocalyptic number.

2131231002202 is a deficient number, since it is larger than the sum of its proper divisors (1066129399610).

2131231002202 is a wasteful number, since it uses less digits than its factorization.

2131231002202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171299504.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 2131231002202 its reverse (2022001321312), we get a palindrome (4153232323514).

The spelling of 2131231002202 in words is "two trillion, one hundred thirty-one billion, two hundred thirty-one million, two thousand, two hundred two".