1321942191359 has 8 divisors (see below), whose sum is σ = 1328302566528. Its totient is φ = 1315582715160.

The previous prime is 1321942191301. The next prime is 1321942191377. The reversal of 1321942191359 is 9531912491231.

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 1321942191359 - 2²⁸ = 1321673755903 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1321942191389) 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, 2822444 + ... + 3257310.

It is an arithmetic number, because the mean of its divisors is an integer number (166037820816).

Almost surely, 2^{1321942191359} is an apocalyptic number.

1321942191359 is a deficient number, since it is larger than the sum of its proper divisors (6360375169).

1321942191359 is a wasteful number, since it uses less digits than its factorization.

1321942191359 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 449485.

The product of its digits is 524880, while the sum is 50.

The spelling of 1321942191359 in words is "one trillion, three hundred twenty-one billion, nine hundred forty-two million, one hundred ninety-one thousand, three hundred fifty-nine".