31401111310402 has 64 divisors (see below), whose sum is σ = 49606331040000. Its totient is φ = 14887546426368.

The previous prime is 31401111310391. The next prime is 31401111310441. The reversal of 31401111310402 is 20401311110413.

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, 1081551678 + ... + 1081580710.

It is an arithmetic number, because the mean of its divisors is an integer number (775098922500).

Almost surely, 2^{31401111310402} is an apocalyptic number.

31401111310402 is a deficient number, since it is larger than the sum of its proper divisors (18205219729598).

31401111310402 is a wasteful number, since it uses less digits than its factorization.

31401111310402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30475.

The product of its (nonzero) digits is 288, while the sum is 22.

Adding to 31401111310402 its reverse (20401311110413), we get a palindrome (51802422420815).

The spelling of 31401111310402 in words is "thirty-one trillion, four hundred one billion, one hundred eleven million, three hundred ten thousand, four hundred two".