23117923 has 2 divisors, whose sum is σ = 23117924. Its totient is φ = 23117922.

The previous prime is 23117917. The next prime is 23117929. The reversal of 23117923 is 32971132.

It is a balanced prime because it is at equal distance from previous prime (23117917) and next prime (23117929).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23117923 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23117891 and 23117900.

It is not a weakly prime, because it can be changed into another prime (23117929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11558961 + 11558962.

It is an arithmetic number, because the mean of its divisors is an integer number (11558962).

Almost surely, 2^23117923 is an apocalyptic number.

23117923 is a deficient number, since it is larger than the sum of its proper divisors (1).

23117923 is an equidigital number, since it uses as much as digits as its factorization.

23117923 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2268, while the sum is 28.

The square root of 23117923 is about 4808.1101276905. The cubic root of 23117923 is about 284.8718948220.

The spelling of 23117923 in words is "twenty-three million, one hundred seventeen thousand, nine hundred twenty-three".