22513101631 has 2 divisors, whose sum is σ = 22513101632. Its totient is φ = 22513101630.

The previous prime is 22513101623. The next prime is 22513101647. The reversal of 22513101631 is 13610131522.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22513101631 - 2³ = 22513101623 is a prime.

It is a super-2 number, since 2×22513101631² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22513101596 and 22513101605.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22513101601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11256550815 + 11256550816.

It is an arithmetic number, because the mean of its divisors is an integer number (11256550816).

Almost surely, 2^22513101631 is an apocalyptic number.

22513101631 is a deficient number, since it is larger than the sum of its proper divisors (1).

22513101631 is an equidigital number, since it uses as much as digits as its factorization.

22513101631 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1080, while the sum is 25.

The spelling of 22513101631 in words is "twenty-two billion, five hundred thirteen million, one hundred one thousand, six hundred thirty-one".