1304123004 has 60 divisors (see below), whose sum is σ = 3519237568. Its totient is φ = 420681600.

The previous prime is 1304123003. The next prime is 1304123021. The reversal of 1304123004 is 4003214031.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1304123003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 54877 + ... + 74964.

Almost surely, 2^1304123004 is an apocalyptic number.

It is an amenable number.

1304123004 is an abundant number, since it is smaller than the sum of its proper divisors (2215114564).

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

1304123004 is a wasteful number, since it uses less digits than its factorization.

1304123004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129888 (or 129877 counting only the distinct ones).

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

The square root of 1304123004 is about 36112.6432707438. The cubic root of 1304123004 is about 1092.5454647195.

Adding to 1304123004 its reverse (4003214031), we get a palindrome (5307337035).

The spelling of 1304123004 in words is "one billion, three hundred four million, one hundred twenty-three thousand, four".