123044031 has 12 divisors (see below), whose sum is σ = 193887720. Its totient is φ = 74572080.

The previous prime is 123044021. The next prime is 123044039. The reversal of 123044031 is 130440321.

It is not a de Polignac number, because 123044031 - 2⁶ = 123043967 is a prime.

It is a super-2 number, since 2×123044031² = 30279667129457922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 123043995 and 123044013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123044039) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 621336 + ... + 621533.

It is an arithmetic number, because the mean of its divisors is an integer number (16157310).

Almost surely, 2^123044031 is an apocalyptic number.

123044031 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

123044031 is a deficient number, since it is larger than the sum of its proper divisors (70843689).

123044031 is a wasteful number, since it uses less digits than its factorization.

123044031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1242886 (or 1242883 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 123044031 is about 11092.5213995737. The cubic root of 123044031 is about 497.3783189360.

Adding to 123044031 its reverse (130440321), we get a palindrome (253484352).

It can be divided in two parts, 1 and 23044031, that added together give a palindrome (23044032).

The spelling of 123044031 in words is "one hundred twenty-three million, forty-four thousand, thirty-one".