123031004 has 12 divisors (see below), whose sum is σ = 226636200. Its totient is φ = 58277808.

The previous prime is 123030959. The next prime is 123031081. The reversal of 123031004 is 400130321.

It is a self number, because there is not a number n which added to its sum of digits gives 123031004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 809339 + ... + 809490.

It is an arithmetic number, because the mean of its divisors is an integer number (18886350).

Almost surely, 2^123031004 is an apocalyptic number.

It is an amenable number.

123031004 is a deficient number, since it is larger than the sum of its proper divisors (103605196).

123031004 is a wasteful number, since it uses less digits than its factorization.

123031004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1618852 (or 1618850 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 123031004 is about 11091.9341866060. The cubic root of 123031004 is about 497.3607653930.

Adding to 123031004 its reverse (400130321), we get a palindrome (523161325).

The spelling of 123031004 in words is "one hundred twenty-three million, thirty-one thousand, four".