123555323 has 2 divisors, whose sum is σ = 123555324. Its totient is φ = 123555322.

The previous prime is 123555239. The next prime is 123555329. The reversal of 123555323 is 323555321.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 123555323 - 2⁸ = 123555067 is a prime.

It is not a weakly prime, because it can be changed into another prime (123555329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61777661 + 61777662.

It is an arithmetic number, because the mean of its divisors is an integer number (61777662).

Almost surely, 2^123555323 is an apocalyptic number.

123555323 is a deficient number, since it is larger than the sum of its proper divisors (1).

123555323 is an equidigital number, since it uses as much as digits as its factorization.

123555323 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13500, while the sum is 29.

The square root of 123555323 is about 11115.5442062006. The cubic root of 123555323 is about 498.0662952123.

The spelling of 123555323 in words is "one hundred twenty-three million, five hundred fifty-five thousand, three hundred twenty-three".