23333381 has 2 divisors, whose sum is σ = 23333382. Its totient is φ = 23333380.

The previous prime is 23333357. The next prime is 23333389. The reversal of 23333381 is 18333332.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14182756 + 9150625 = 3766^2 + 3025^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23333381 is a prime.

It is a super-2 number, since 2×23333381² = 1088893337782322, which contains 22 as substring.

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 23333381.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23333389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11666690 + 11666691.

It is an arithmetic number, because the mean of its divisors is an integer number (11666691).

Almost surely, 2^23333381 is an apocalyptic number.

It is an amenable number.

23333381 is a deficient number, since it is larger than the sum of its proper divisors (1).

23333381 is an equidigital number, since it uses as much as digits as its factorization.

23333381 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3888, while the sum is 26.

The square root of 23333381 is about 4830.4638493627. The cubic root of 23333381 is about 285.7541573285.

The spelling of 23333381 in words is "twenty-three million, three hundred thirty-three thousand, three hundred eighty-one".