23213552213 has 2 divisors, whose sum is σ = 23213552214. Its totient is φ = 23213552212.

The previous prime is 23213552149. The next prime is 23213552267. The reversal of 23213552213 is 31225531232.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21150757489 + 2062794724 = 145433^2 + 45418^2 .

It is a cyclic number.

It is not a de Polignac number, because 23213552213 - 2⁶ = 23213552149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23213552413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11606776106 + 11606776107.

It is an arithmetic number, because the mean of its divisors is an integer number (11606776107).

Almost surely, 2^23213552213 is an apocalyptic number.

It is an amenable number.

23213552213 is a deficient number, since it is larger than the sum of its proper divisors (1).

23213552213 is an equidigital number, since it uses as much as digits as its factorization.

23213552213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10800, while the sum is 29.

The spelling of 23213552213 in words is "twenty-three billion, two hundred thirteen million, five hundred fifty-two thousand, two hundred thirteen".