1321330213999 has 8 divisors (see below), whose sum is σ = 1322678240000. Its totient is φ = 1319982336792.

The previous prime is 1321330213943. The next prime is 1321330214137. The reversal of 1321330213999 is 9993120331231.

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 1321330213999 - 2²⁵ = 1321296659567 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 (1321330213699) 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, 29172232 + ... + 29217490.

It is an arithmetic number, because the mean of its divisors is an integer number (165334780000).

Almost surely, 2^{1321330213999} is an apocalyptic number.

1321330213999 is a deficient number, since it is larger than the sum of its proper divisors (1348026001).

1321330213999 is a wasteful number, since it uses less digits than its factorization.

1321330213999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74397.

The product of its (nonzero) digits is 236196, while the sum is 46.

The spelling of 1321330213999 in words is "one trillion, three hundred twenty-one billion, three hundred thirty million, two hundred thirteen thousand, nine hundred ninety-nine".