313231130111 has 4 divisors (see below), whose sum is σ = 313232560224. Its totient is φ = 313229700000.

The previous prime is 313231130089. The next prime is 313231130131. The reversal of 313231130111 is 111031132313.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-313231130111 is a prime.

It is a super-2 number, since 2×313231130111² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313231130131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 310055 + ... + 850056.

It is an arithmetic number, because the mean of its divisors is an integer number (78308140056).

Almost surely, 2^313231130111 is an apocalyptic number.

313231130111 is a deficient number, since it is larger than the sum of its proper divisors (1430113).

313231130111 is a wasteful number, since it uses less digits than its factorization.

313231130111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1430112.

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

Adding to 313231130111 its reverse (111031132313), we get a palindrome (424262262424).

The spelling of 313231130111 in words is "three hundred thirteen billion, two hundred thirty-one million, one hundred thirty thousand, one hundred eleven".