123001020404 has 24 divisors (see below), whose sum is σ = 226592741760. Its totient is φ = 58260577536.

The previous prime is 123001020403. The next prime is 123001020409. The reversal of 123001020404 is 404020100321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123001020403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2152004 + ... + 2208420.

It is an arithmetic number, because the mean of its divisors is an integer number (9441364240).

Almost surely, 2^123001020404 is an apocalyptic number.

It is an amenable number.

123001020404 is a deficient number, since it is larger than the sum of its proper divisors (103591721356).

123001020404 is a wasteful number, since it uses less digits than its factorization.

123001020404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85127 (or 85125 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 123001020404 its reverse (404020100321), we get a palindrome (527021120725).

The spelling of 123001020404 in words is "one hundred twenty-three billion, one million, twenty thousand, four hundred four".