31313302032111 has 16 divisors (see below), whose sum is σ = 45547837870080. Its totient is φ = 18977251835520.

The previous prime is 31313302032107. The next prime is 31313302032157. The reversal of 31313302032111 is 11123020331313.

It is not a de Polignac number, because 31313302032111 - 2² = 31313302032107 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31313302032011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11418415 + ... + 13892688.

It is an arithmetic number, because the mean of its divisors is an integer number (2846739866880).

Almost surely, 2^{31313302032111} is an apocalyptic number.

31313302032111 is a deficient number, since it is larger than the sum of its proper divisors (14234535837969).

31313302032111 is a wasteful number, since it uses less digits than its factorization.

31313302032111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25348606.

The product of its (nonzero) digits is 972, while the sum is 24.

Adding to 31313302032111 its reverse (11123020331313), we get a palindrome (42436322363424).

The spelling of 31313302032111 in words is "thirty-one trillion, three hundred thirteen billion, three hundred two million, thirty-two thousand, one hundred eleven".