123711923 has 2 divisors, whose sum is σ = 123711924. Its totient is φ = 123711922.

The previous prime is 123711901. The next prime is 123711937. The reversal of 123711923 is 329117321.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 123711923 - 2¹⁸ = 123449779 is a prime.

It is not a weakly prime, because it can be changed into another prime (123711953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61855961 + 61855962.

It is an arithmetic number, because the mean of its divisors is an integer number (61855962).

Almost surely, 2^123711923 is an apocalyptic number.

123711923 is a deficient number, since it is larger than the sum of its proper divisors (1).

123711923 is an equidigital number, since it uses as much as digits as its factorization.

123711923 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2268, while the sum is 29.

The square root of 123711923 is about 11122.5861650967. The cubic root of 123711923 is about 498.2766308219.

The spelling of 123711923 in words is "one hundred twenty-three million, seven hundred eleven thousand, nine hundred twenty-three".