313123222231 has 2 divisors, whose sum is σ = 313123222232. Its totient is φ = 313123222230.

The previous prime is 313123222211. The next prime is 313123222273. The reversal of 313123222231 is 132222321313.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 313123222231 - 2¹¹ = 313123220183 is a prime.

It is a super-2 number, since 2×313123222231² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 313123222196 and 313123222205.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (313123222211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156561611115 + 156561611116.

It is an arithmetic number, because the mean of its divisors is an integer number (156561611116).

Almost surely, 2^313123222231 is an apocalyptic number.

313123222231 is a deficient number, since it is larger than the sum of its proper divisors (1).

313123222231 is an equidigital number, since it uses as much as digits as its factorization.

313123222231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2592, while the sum is 25.

Adding to 313123222231 its reverse (132222321313), we get a palindrome (445345543544).

The spelling of 313123222231 in words is "three hundred thirteen billion, one hundred twenty-three million, two hundred twenty-two thousand, two hundred thirty-one".