1321304251304 has 32 divisors (see below), whose sum is σ = 2691961132800. Its totient is φ = 605691250560.

The previous prime is 1321304251271. The next prime is 1321304251339. The reversal of 1321304251304 is 4031524031231.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 140201597 + ... + 140211020.

It is an arithmetic number, because the mean of its divisors is an integer number (84123785400).

Almost surely, 2^{1321304251304} is an apocalyptic number.

It is an amenable number.

1321304251304 is an abundant number, since it is smaller than the sum of its proper divisors (1370656881496).

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

1321304251304 is a wasteful number, since it uses less digits than its factorization.

1321304251304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280412673 (or 280412669 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 29.

Adding to 1321304251304 its reverse (4031524031231), we get a palindrome (5352828282535).

The spelling of 1321304251304 in words is "one trillion, three hundred twenty-one billion, three hundred four million, two hundred fifty-one thousand, three hundred four".