23221313113 has 2 divisors, whose sum is σ = 23221313114. Its totient is φ = 23221313112.

The previous prime is 23221313069. The next prime is 23221313117. The reversal of 23221313113 is 31131312232.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17043824704 + 6177488409 = 130552^2 + 78597^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23221313113 is a prime.

It is not a weakly prime, because it can be changed into another prime (23221313117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11610656556 + 11610656557.

It is an arithmetic number, because the mean of its divisors is an integer number (11610656557).

Almost surely, 2^23221313113 is an apocalyptic number.

It is an amenable number.

23221313113 is a deficient number, since it is larger than the sum of its proper divisors (1).

23221313113 is an equidigital number, since it uses as much as digits as its factorization.

23221313113 is an evil number, because the sum of its binary digits is even.

The product of its digits is 648, while the sum is 22.

Adding to 23221313113 its reverse (31131312232), we get a palindrome (54352625345).

The spelling of 23221313113 in words is "twenty-three billion, two hundred twenty-one million, three hundred thirteen thousand, one hundred thirteen".