31313113010102 has 32 divisors (see below), whose sum is σ = 58564852118784. Its totient is φ = 12198817461600.

The previous prime is 31313113010083. The next prime is 31313113010117. The reversal of 31313113010102 is 20101031131313.

It is a super-2 number, since 2×31313113010102² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7419413 + ... + 10847760.

It is an arithmetic number, because the mean of its divisors is an integer number (1830151628712).

Almost surely, 2^{31313113010102} is an apocalyptic number.

31313113010102 is a deficient number, since it is larger than the sum of its proper divisors (27251739108682).

31313113010102 is a wasteful number, since it uses less digits than its factorization.

31313113010102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18278324.

The product of its (nonzero) digits is 162, while the sum is 20.

Adding to 31313113010102 its reverse (20101031131313), we get a palindrome (51414144141415).

The spelling of 31313113010102 in words is "thirty-one trillion, three hundred thirteen billion, one hundred thirteen million, ten thousand, one hundred two".