31313132133111 has 12 divisors (see below), whose sum is σ = 45230592902040. Its totient is φ = 20875184581680.

The previous prime is 31313132133083. The next prime is 31313132133137. The reversal of 31313132133111 is 11133123131313.

31313132133111 is a `hidden beast` number, since 3 + 1 + 3 + 1 + 3 + 1 + 321 + 331 + 1 + 1 = 666.

It is not a de Polignac number, because 31313132133111 - 2¹³ = 31313132124919 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31313132133611) 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, 18897480 + ... + 20487581.

It is an arithmetic number, because the mean of its divisors is an integer number (3769216075170).

Almost surely, 2^{31313132133111} is an apocalyptic number.

31313132133111 is a deficient number, since it is larger than the sum of its proper divisors (13917460768929).

31313132133111 is a wasteful number, since it uses less digits than its factorization.

31313132133111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39473406 (or 39473403 counting only the distinct ones).

The product of its digits is 1458, while the sum is 27.

Adding to 31313132133111 its reverse (11133123131313), we get a palindrome (42446255264424).

The spelling of 31313132133111 in words is "thirty-one trillion, three hundred thirteen billion, one hundred thirty-two million, one hundred thirty-three thousand, one hundred eleven".