31400212412402 has 16 divisors (see below), whose sum is σ = 47569257480024. Its totient is φ = 15543810240000.

The previous prime is 31400212412383. The next prime is 31400212412411. The reversal of 31400212412402 is 20421421200413.

It can be written as a sum of positive squares in 4 ways, for example, as 21787974082081 + 9612238330321 = 4667759^2 + 3100361^2 .

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, 532799 + ... + 7942562.

Almost surely, 2^{31400212412402} is an apocalyptic number.

31400212412402 is a deficient number, since it is larger than the sum of its proper divisors (16169045067622).

31400212412402 is a wasteful number, since it uses less digits than its factorization.

31400212412402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8493805.

The product of its (nonzero) digits is 3072, while the sum is 26.

Adding to 31400212412402 its reverse (20421421200413), we get a palindrome (51821633612815).

The spelling of 31400212412402 in words is "thirty-one trillion, four hundred billion, two hundred twelve million, four hundred twelve thousand, four hundred two".