31022425013 has 2 divisors, whose sum is σ = 31022425014. Its totient is φ = 31022425012.

The previous prime is 31022424989. The next prime is 31022425039. The reversal of 31022425013 is 31052422013.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29207835409 + 1814589604 = 170903^2 + 42598^2 .

It is a cyclic number.

It is not a de Polignac number, because 31022425013 - 2³⁰ = 29948683189 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 31022425013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31022425043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15511212506 + 15511212507.

It is an arithmetic number, because the mean of its divisors is an integer number (15511212507).

Almost surely, 2^31022425013 is an apocalyptic number.

It is an amenable number.

31022425013 is a deficient number, since it is larger than the sum of its proper divisors (1).

31022425013 is an equidigital number, since it uses as much as digits as its factorization.

31022425013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 23.

Adding to 31022425013 its reverse (31052422013), we get a palindrome (62074847026).

The spelling of 31022425013 in words is "thirty-one billion, twenty-two million, four hundred twenty-five thousand, thirteen".