23491214213 has 2 divisors, whose sum is σ = 23491214214. Its totient is φ = 23491214212.

The previous prime is 23491214171. The next prime is 23491214237. The reversal of 23491214213 is 31241219432.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18718891489 + 4772322724 = 136817^2 + 69082^2 .

It is a cyclic number.

It is not a de Polignac number, because 23491214213 - 2⁸ = 23491213957 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23491214213.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23491214273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11745607106 + 11745607107.

It is an arithmetic number, because the mean of its divisors is an integer number (11745607107).

Almost surely, 2^23491214213 is an apocalyptic number.

It is an amenable number.

23491214213 is a deficient number, since it is larger than the sum of its proper divisors (1).

23491214213 is an equidigital number, since it uses as much as digits as its factorization.

23491214213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10368, while the sum is 32.

The spelling of 23491214213 in words is "twenty-three billion, four hundred ninety-one million, two hundred fourteen thousand, two hundred thirteen".