1321304004324 has 72 divisors (see below), whose sum is σ = 3486561204672. Its totient is φ = 421118216640.

The previous prime is 1321304004313. The next prime is 1321304004353. The reversal of 1321304004324 is 4234004031231.

1321304004324 is a `hidden beast` number, since 1 + 3 + 213 + 0 + 400 + 43 + 2 + 4 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1780422 + ... + 2410914.

It is an arithmetic number, because the mean of its divisors is an integer number (48424461176).

Almost surely, 2^{1321304004324} is an apocalyptic number.

It is an amenable number.

1321304004324 is an abundant number, since it is smaller than the sum of its proper divisors (2165257200348).

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

1321304004324 is a wasteful number, since it uses less digits than its factorization.

1321304004324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 633057 (or 633052 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 1321304004324 its reverse (4234004031231), we get a palindrome (5555308035555).

The spelling of 1321304004324 in words is "one trillion, three hundred twenty-one billion, three hundred four million, four thousand, three hundred twenty-four".