313113133031 has 4 divisors (see below), whose sum is σ = 313114531392. Its totient is φ = 313111734672.

The previous prime is 313113132989. The next prime is 313113133051. The reversal of 313113133031 is 130331311313.

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

It is a cyclic number.

It is not a de Polignac number, because 313113133031 - 2⁶ = 313113132967 is a prime.

It is a super-2 number, since 2×313113133031² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 313113132988 and 313113133006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313113133051) 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, 279230 + ... + 839163.

It is an arithmetic number, because the mean of its divisors is an integer number (78278632848).

Almost surely, 2^313113133031 is an apocalyptic number.

313113133031 is a deficient number, since it is larger than the sum of its proper divisors (1398361).

313113133031 is a wasteful number, since it uses less digits than its factorization.

313113133031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1398360.

The product of its (nonzero) digits is 729, while the sum is 23.

Adding to 313113133031 its reverse (130331311313), we get a palindrome (443444444344).

The spelling of 313113133031 in words is "three hundred thirteen billion, one hundred thirteen million, one hundred thirty-three thousand, thirty-one".