1321431404113 has 8 divisors (see below), whose sum is σ = 1328850506880. Its totient is φ = 1314012710640.

The previous prime is 1321431404099. The next prime is 1321431404171. The reversal of 1321431404113 is 3114041341231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1321431404113 - 2⁵ = 1321431404081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1321431204113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8303931 + ... + 8461567.

It is an arithmetic number, because the mean of its divisors is an integer number (166106313360).

Almost surely, 2^{1321431404113} is an apocalyptic number.

It is an amenable number.

1321431404113 is a deficient number, since it is larger than the sum of its proper divisors (7419102767).

1321431404113 is a wasteful number, since it uses less digits than its factorization.

1321431404113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204647.

The product of its (nonzero) digits is 3456, while the sum is 28.

Adding to 1321431404113 its reverse (3114041341231), we get a palindrome (4435472745344).

The spelling of 1321431404113 in words is "one trillion, three hundred twenty-one billion, four hundred thirty-one million, four hundred four thousand, one hundred thirteen".