123955723 has 2 divisors, whose sum is σ = 123955724. Its totient is φ = 123955722.

The previous prime is 123955709. The next prime is 123955759. The reversal of 123955723 is 327559321.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 123955723 - 2⁵ = 123955691 is a prime.

It is not a weakly prime, because it can be changed into another prime (123953723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61977861 + 61977862.

It is an arithmetic number, because the mean of its divisors is an integer number (61977862).

Almost surely, 2^123955723 is an apocalyptic number.

123955723 is a deficient number, since it is larger than the sum of its proper divisors (1).

123955723 is an equidigital number, since it uses as much as digits as its factorization.

123955723 is an evil number, because the sum of its binary digits is even.

The product of its digits is 56700, while the sum is 37.

The square root of 123955723 is about 11133.5404521653. The cubic root of 123955723 is about 498.6037351853.

The spelling of 123955723 in words is "one hundred twenty-three million, nine hundred fifty-five thousand, seven hundred twenty-three".