31400220112402 has 64 divisors (see below), whose sum is σ = 48158222112000. Its totient is φ = 15353184833280.

The previous prime is 31400220112379. The next prime is 31400220112451. The reversal of 31400220112402 is 20421102200413.

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, 2537795488 + ... + 2537807860.

It is an arithmetic number, because the mean of its divisors is an integer number (752472220500).

Almost surely, 2^{31400220112402} is an apocalyptic number.

31400220112402 is a deficient number, since it is larger than the sum of its proper divisors (16758001999598).

31400220112402 is a wasteful number, since it uses less digits than its factorization.

31400220112402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13171.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 31400220112402 its reverse (20421102200413), we get a palindrome (51821322312815).

The spelling of 31400220112402 in words is "thirty-one trillion, four hundred billion, two hundred twenty million, one hundred twelve thousand, four hundred two".