22031315513 has 2 divisors, whose sum is σ = 22031315514. Its totient is φ = 22031315512.

The previous prime is 22031315503. The next prime is 22031315591. The reversal of 22031315513 is 31551313022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13411492864 + 8619822649 = 115808^2 + 92843^2 .

It is a cyclic number.

It is not a de Polignac number, because 22031315513 - 2²⁸ = 21762880057 is a prime.

It is not a weakly prime, because it can be changed into another prime (22031315503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11015657756 + 11015657757.

It is an arithmetic number, because the mean of its divisors is an integer number (11015657757).

Almost surely, 2^22031315513 is an apocalyptic number.

It is an amenable number.

22031315513 is a deficient number, since it is larger than the sum of its proper divisors (1).

22031315513 is an equidigital number, since it uses as much as digits as its factorization.

22031315513 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2700, while the sum is 26.

Adding to 22031315513 its reverse (31551313022), we get a palindrome (53582628535).

The spelling of 22031315513 in words is "twenty-two billion, thirty-one million, three hundred fifteen thousand, five hundred thirteen".