31400020134402 has 64 divisors (see below), whose sum is σ = 66689224819200. Its totient is φ = 9822119215104.

The previous prime is 31400020134323. The next prime is 31400020134433. The reversal of 31400020134402 is 20443102000413.

It is a super-2 number, since 2×31400020134402² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 64929648 + ... + 65411460.

It is an arithmetic number, because the mean of its divisors is an integer number (1042019137800).

Almost surely, 2^{31400020134402} is an apocalyptic number.

31400020134402 is an abundant number, since it is smaller than the sum of its proper divisors (35289204684798).

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

31400020134402 is a wasteful number, since it uses less digits than its factorization.

31400020134402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 483707.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 31400020134402 its reverse (20443102000413), we get a palindrome (51843122134815).

The spelling of 31400020134402 in words is "thirty-one trillion, four hundred billion, twenty million, one hundred thirty-four thousand, four hundred two".