123031023 has 16 divisors (see below), whose sum is σ = 182833920. Its totient is φ = 73132416.

The previous prime is 123030959. The next prime is 123031081. The reversal of 123031023 is 320130321.

It is not a de Polignac number, because 123031023 - 2⁶ = 123030959 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 123030993 and 123031011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123031523) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62515 + ... + 64452.

It is an arithmetic number, because the mean of its divisors is an integer number (11427120).

Almost surely, 2^123031023 is an apocalyptic number.

123031023 is a deficient number, since it is larger than the sum of its proper divisors (59802897).

123031023 is a wasteful number, since it uses less digits than its factorization.

123031023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127006.

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 123031023 is about 11091.9350430842. The cubic root of 123031023 is about 497.3607909959.

Adding to 123031023 its reverse (320130321), we get a palindrome (443161344).

The spelling of 123031023 in words is "one hundred twenty-three million, thirty-one thousand, twenty-three".