23123939 has 2 divisors, whose sum is σ = 23123940. Its totient is φ = 23123938.

The previous prime is 23123921. The next prime is 23123957. The reversal of 23123939 is 93932132.

It is a balanced prime because it is at equal distance from previous prime (23123921) and next prime (23123957).

It is a cyclic number.

It is not a de Polignac number, because 23123939 - 2¹² = 23119843 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (23123239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11561969 + 11561970.

It is an arithmetic number, because the mean of its divisors is an integer number (11561970).

Almost surely, 2^23123939 is an apocalyptic number.

23123939 is a deficient number, since it is larger than the sum of its proper divisors (1).

23123939 is an equidigital number, since it uses as much as digits as its factorization.

23123939 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8748, while the sum is 32.

The square root of 23123939 is about 4808.7356966255. The cubic root of 23123939 is about 284.8966035106.

The spelling of 23123939 in words is "twenty-three million, one hundred twenty-three thousand, nine hundred thirty-nine".