313132120131 has 4 divisors (see below), whose sum is σ = 417509493512. Its totient is φ = 208754746752.

The previous prime is 313132120129. The next prime is 313132120163. The reversal of 313132120131 is 131021231313.

It is a happy number.

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

It is not a de Polignac number, because 313132120131 - 2¹ = 313132120129 is a prime.

It is a super-2 number, since 2×313132120131² (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 = 313132120098 and 313132120107.

It is not an unprimeable number, because it can be changed into a prime (313132110131) 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, 52188686686 + ... + 52188686691.

It is an arithmetic number, because the mean of its divisors is an integer number (104377373378).

Almost surely, 2^313132120131 is an apocalyptic number.

313132120131 is a deficient number, since it is larger than the sum of its proper divisors (104377373381).

313132120131 is a wasteful number, since it uses less digits than its factorization.

313132120131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104377373380.

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 313132120131 its reverse (131021231313), we get a palindrome (444153351444).

The spelling of 313132120131 in words is "three hundred thirteen billion, one hundred thirty-two million, one hundred twenty thousand, one hundred thirty-one".