313131011023 has 2 divisors, whose sum is σ = 313131011024. Its totient is φ = 313131011022.

The previous prime is 313131010987. The next prime is 313131011047. The reversal of 313131011023 is 320110131313.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 313131011023 - 2¹³ = 313131002831 is a prime.

It is a super-2 number, since 2×313131011023² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (313131041023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156565505511 + 156565505512.

It is an arithmetic number, because the mean of its divisors is an integer number (156565505512).

Almost surely, 2^313131011023 is an apocalyptic number.

313131011023 is a deficient number, since it is larger than the sum of its proper divisors (1).

313131011023 is an equidigital number, since it uses as much as digits as its factorization.

313131011023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 162, while the sum is 19.

Adding to 313131011023 its reverse (320110131313), we get a palindrome (633241142336).

The spelling of 313131011023 in words is "three hundred thirteen billion, one hundred thirty-one million, eleven thousand, twenty-three".