23216903 has 2 divisors, whose sum is σ = 23216904. Its totient is φ = 23216902.

The previous prime is 23216899. The next prime is 23216911. The reversal of 23216903 is 30961232.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23216903 - 2² = 23216899 is a prime.

It is a super-2 number, since 2×23216903² = 1078049169822818, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23216933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11608451 + 11608452.

It is an arithmetic number, because the mean of its divisors is an integer number (11608452).

Almost surely, 2^23216903 is an apocalyptic number.

23216903 is a deficient number, since it is larger than the sum of its proper divisors (1).

23216903 is an equidigital number, since it uses as much as digits as its factorization.

23216903 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 26.

The square root of 23216903 is about 4818.3921592166. The cubic root of 23216903 is about 285.2778781518.

The spelling of 23216903 in words is "twenty-three million, two hundred sixteen thousand, nine hundred three".