23104646221 has 2 divisors, whose sum is σ = 23104646222. Its totient is φ = 23104646220.

The previous prime is 23104646167. The next prime is 23104646233. The reversal of 23104646221 is 12264640132.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20018288196 + 3086358025 = 141486^2 + 55555^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23104646221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23104646291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11552323110 + 11552323111.

It is an arithmetic number, because the mean of its divisors is an integer number (11552323111).

Almost surely, 2^23104646221 is an apocalyptic number.

It is an amenable number.

23104646221 is a deficient number, since it is larger than the sum of its proper divisors (1).

23104646221 is an equidigital number, since it uses as much as digits as its factorization.

23104646221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13824, while the sum is 31.

The spelling of 23104646221 in words is "twenty-three billion, one hundred four million, six hundred forty-six thousand, two hundred twenty-one".