1304402031320 has 16 divisors (see below), whose sum is σ = 2934904570560. Its totient is φ = 521760812512.

The previous prime is 1304402031263. The next prime is 1304402031353. The reversal of 1304402031320 is 231302044031.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 16305025352 + ... + 16305025431.

It is an arithmetic number, because the mean of its divisors is an integer number (183431535660).

Almost surely, 2^{1304402031320} is an apocalyptic number.

1304402031320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1304402031320 is an abundant number, since it is smaller than the sum of its proper divisors (1630502539240).

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

1304402031320 is a wasteful number, since it uses less digits than its factorization.

1304402031320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32610050794 (or 32610050790 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 1304402031320 its reverse (231302044031), we get a palindrome (1535704075351).

The spelling of 1304402031320 in words is "one trillion, three hundred four billion, four hundred two million, thirty-one thousand, three hundred twenty".