123285023 has 2 divisors, whose sum is σ = 123285024. Its totient is φ = 123285022.

The previous prime is 123285013. The next prime is 123285031. The reversal of 123285023 is 320582321.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123285023 is a prime.

It is a super-2 number, since 2×123285023² = 30398393792221058, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 123284983 and 123285001.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123285013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61642511 + 61642512.

It is an arithmetic number, because the mean of its divisors is an integer number (61642512).

Almost surely, 2^123285023 is an apocalyptic number.

123285023 is a deficient number, since it is larger than the sum of its proper divisors (1).

123285023 is an equidigital number, since it uses as much as digits as its factorization.

123285023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 123285023 is about 11103.3789001367. The cubic root of 123285023 is about 497.7028261475.

The spelling of 123285023 in words is "one hundred twenty-three million, two hundred eighty-five thousand, twenty-three".