31402020113146 has 16 divisors (see below), whose sum is σ = 47468816501184. Its totient is φ = 15579393518304.

The previous prime is 31402020113119. The next prime is 31402020113161. The reversal of 31402020113146 is 64131102020413.

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, 77858190 + ... + 78260473.

It is an arithmetic number, because the mean of its divisors is an integer number (2966801031324).

Almost surely, 2^{31402020113146} is an apocalyptic number.

31402020113146 is a deficient number, since it is larger than the sum of its proper divisors (16066796388038).

31402020113146 is a wasteful number, since it uses less digits than its factorization.

31402020113146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156119445.

The product of its (nonzero) digits is 3456, while the sum is 28.

Adding to 31402020113146 its reverse (64131102020413), we get a palindrome (95533122133559).

The spelling of 31402020113146 in words is "thirty-one trillion, four hundred two billion, twenty million, one hundred thirteen thousand, one hundred forty-six".