10311020431 has 2 divisors, whose sum is σ = 10311020432. Its totient is φ = 10311020430.

The previous prime is 10311020429. The next prime is 10311020477. The reversal of 10311020431 is 13402011301.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 10311020431 - 2¹ = 10311020429 is a prime.

It is a super-2 number, since 2×10311020431² (a number of 21 digits) contains 22 as substring.

Together with 10311020429, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10311020231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5155510215 + 5155510216.

It is an arithmetic number, because the mean of its divisors is an integer number (5155510216).

Almost surely, 2^10311020431 is an apocalyptic number.

10311020431 is a deficient number, since it is larger than the sum of its proper divisors (1).

10311020431 is an equidigital number, since it uses as much as digits as its factorization.

10311020431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 10311020431 its reverse (13402011301), we get a palindrome (23713031732).

The spelling of 10311020431 in words is "ten billion, three hundred eleven million, twenty thousand, four hundred thirty-one".