23216261213 has 2 divisors, whose sum is σ = 23216261214. Its totient is φ = 23216261212.

The previous prime is 23216261209. The next prime is 23216261251. The reversal of 23216261213 is 31216261232.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14217462169 + 8998799044 = 119237^2 + 94862^2 .

It is a cyclic number.

It is not a de Polignac number, because 23216261213 - 2² = 23216261209 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23216261413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11608130606 + 11608130607.

It is an arithmetic number, because the mean of its divisors is an integer number (11608130607).

Almost surely, 2^23216261213 is an apocalyptic number.

It is an amenable number.

23216261213 is a deficient number, since it is larger than the sum of its proper divisors (1).

23216261213 is an equidigital number, since it uses as much as digits as its factorization.

23216261213 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5184, while the sum is 29.

The spelling of 23216261213 in words is "twenty-three billion, two hundred sixteen million, two hundred sixty-one thousand, two hundred thirteen".