23164334381 has 2 divisors, whose sum is σ = 23164334382. Its totient is φ = 23164334380.

The previous prime is 23164334357. The next prime is 23164334411. The reversal of 23164334381 is 18343346132.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13025656900 + 10138677481 = 114130^2 + 100691^2 .

It is a cyclic number.

It is not a de Polignac number, because 23164334381 - 2¹⁸ = 23164072237 is a prime.

It is a super-2 number, since 2×23164334381² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23164334881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11582167190 + 11582167191.

It is an arithmetic number, because the mean of its divisors is an integer number (11582167191).

Almost surely, 2^23164334381 is an apocalyptic number.

It is an amenable number.

23164334381 is a deficient number, since it is larger than the sum of its proper divisors (1).

23164334381 is an equidigital number, since it uses as much as digits as its factorization.

23164334381 is an evil number, because the sum of its binary digits is even.

The product of its digits is 124416, while the sum is 38.

The spelling of 23164334381 in words is "twenty-three billion, one hundred sixty-four million, three hundred thirty-four thousand, three hundred eighty-one".