13233220817 has 2 divisors, whose sum is σ = 13233220818. Its totient is φ = 13233220816.

The previous prime is 13233220807. The next prime is 13233220831. The reversal of 13233220817 is 71802233231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13118495296 + 114725521 = 114536^2 + 10711^2 .

It is a cyclic number.

It is not a de Polignac number, because 13233220817 - 2²² = 13229026513 is a prime.

It is not a weakly prime, because it can be changed into another prime (13233220807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6616610408 + 6616610409.

It is an arithmetic number, because the mean of its divisors is an integer number (6616610409).

Almost surely, 2^13233220817 is an apocalyptic number.

It is an amenable number.

13233220817 is a deficient number, since it is larger than the sum of its proper divisors (1).

13233220817 is an equidigital number, since it uses as much as digits as its factorization.

13233220817 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 32.

The spelling of 13233220817 in words is "thirteen billion, two hundred thirty-three million, two hundred twenty thousand, eight hundred seventeen".