31200111331402 has 16 divisors (see below), whose sum is σ = 50417541377280. Its totient is φ = 14395090945392.

The previous prime is 31200111331387. The next prime is 31200111331517. The reversal of 31200111331402 is 20413311100213.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 206608002 + ... + 206758957.

It is an arithmetic number, because the mean of its divisors is an integer number (3151096336080).

Almost surely, 2^{31200111331402} is an apocalyptic number.

31200111331402 is a deficient number, since it is larger than the sum of its proper divisors (19217430045878).

31200111331402 is a wasteful number, since it uses less digits than its factorization.

31200111331402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 413369877.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 31200111331402 its reverse (20413311100213), we get a palindrome (51613422431615).

The spelling of 31200111331402 in words is "thirty-one trillion, two hundred billion, one hundred eleven million, three hundred thirty-one thousand, four hundred two".