313220223131 has 2 divisors, whose sum is σ = 313220223132. Its totient is φ = 313220223130.

The previous prime is 313220223109. The next prime is 313220223167. The reversal of 313220223131 is 131322022313.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 313220223131 - 2⁶ = 313220223067 is a prime.

It is a super-2 number, since 2×313220223131² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 313220223097 and 313220223106.

It is not a weakly prime, because it can be changed into another prime (313220223181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156610111565 + 156610111566.

It is an arithmetic number, because the mean of its divisors is an integer number (156610111566).

Almost surely, 2^313220223131 is an apocalyptic number.

313220223131 is a deficient number, since it is larger than the sum of its proper divisors (1).

313220223131 is an equidigital number, since it uses as much as digits as its factorization.

313220223131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 313220223131 its reverse (131322022313), we get a palindrome (444542245444).

The spelling of 313220223131 in words is "three hundred thirteen billion, two hundred twenty million, two hundred twenty-three thousand, one hundred thirty-one".