123403001204 has 36 divisors (see below), whose sum is σ = 251280928836. Its totient is φ = 52872753024.

The previous prime is 123403001203. The next prime is 123403001221. The reversal of 123403001204 is 402100304321.

It can be written as a sum of positive squares in 2 ways, for example, as 53315733604 + 70087267600 = 230902^2 + 264740^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123403001203) 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, 661304 + ... + 827120.

It is an arithmetic number, because the mean of its divisors is an integer number (6980025801).

Almost surely, 2^123403001204 is an apocalyptic number.

123403001204 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

123403001204 is an abundant number, since it is smaller than the sum of its proper divisors (127877927632).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123403001204 is a wasteful number, since it uses less digits than its factorization.

123403001204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169632 (or 169623 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 123403001204 its reverse (402100304321), we get a palindrome (525503305525).

The spelling of 123403001204 in words is "one hundred twenty-three billion, four hundred three million, one thousand, two hundred four".