23108381 has 2 divisors, whose sum is σ = 23108382. Its totient is φ = 23108380.

The previous prime is 23108377. The next prime is 23108383. The reversal of 23108381 is 18380132.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16687225 + 6421156 = 4085^2 + 2534^2 .

It is a cyclic number.

It is not a de Polignac number, because 23108381 - 2² = 23108377 is a prime.

It is a super-2 number, since 2×23108381² = 1067994544882322, which contains 22 as substring.

Together with 23108383, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23108381.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23108383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11554190 + 11554191.

It is an arithmetic number, because the mean of its divisors is an integer number (11554191).

Almost surely, 2^23108381 is an apocalyptic number.

It is an amenable number.

23108381 is a deficient number, since it is larger than the sum of its proper divisors (1).

23108381 is an equidigital number, since it uses as much as digits as its factorization.

23108381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 23108381 is about 4807.1177435133. The cubic root of 23108381 is about 284.8326954860.

The spelling of 23108381 in words is "twenty-three million, one hundred eight thousand, three hundred eighty-one".