313231302131 has 8 divisors (see below), whose sum is σ = 342275446128. Its totient is φ = 284281920000.

The previous prime is 313231302127. The next prime is 313231302161. The reversal of 313231302131 is 131203132313.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 313231302131 - 2² = 313231302127 is a prime.

It is a super-2 number, since 2×313231302131² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 313231302097 and 313231302106.

It is not an unprimeable number, because it can be changed into a prime (313231302161) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23683550 + ... + 23696771.

It is an arithmetic number, because the mean of its divisors is an integer number (42784430766).

Almost surely, 2^313231302131 is an apocalyptic number.

313231302131 is a deficient number, since it is larger than the sum of its proper divisors (29044143997).

313231302131 is a wasteful number, since it uses less digits than its factorization.

313231302131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47380933.

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 313231302131 its reverse (131203132313), we get a palindrome (444434434444).

The spelling of 313231302131 in words is "three hundred thirteen billion, two hundred thirty-one million, three hundred two thousand, one hundred thirty-one".