31313323134 has 24 divisors (see below), whose sum is σ = 68333636280. Its totient is φ = 10362681648.

The previous prime is 31313323133. The next prime is 31313323157. The reversal of 31313323134 is 43132331313.

31313323134 is a `hidden beast` number, since 3 + 1 + 313 + 32 + 313 + 4 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 31313323098 and 31313323107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31313323133) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6255157 + ... + 6260160.

It is an arithmetic number, because the mean of its divisors is an integer number (2847234845).

Almost surely, 2^31313323134 is an apocalyptic number.

31313323134 is an abundant number, since it is smaller than the sum of its proper divisors (37020313146).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31313323134 is a wasteful number, since it uses less digits than its factorization.

31313323134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12515464 (or 12515461 counting only the distinct ones).

The product of its digits is 5832, while the sum is 27.

Adding to 31313323134 its reverse (43132331313), we get a palindrome (74445654447).

The spelling of 31313323134 in words is "thirty-one billion, three hundred thirteen million, three hundred twenty-three thousand, one hundred thirty-four".