1301323121999 has 8 divisors (see below), whose sum is σ = 1317319969392. Its totient is φ = 1285404883840.

The previous prime is 1301323121977. The next prime is 1301323122007. The reversal of 1301323121999 is 9991213231031.

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 1301323121999 - 2²⁸ = 1301054686543 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 (1301323121939) 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, 19618997 + ... + 19685214.

It is an arithmetic number, because the mean of its divisors is an integer number (164664996174).

Almost surely, 2^{1301323121999} is an apocalyptic number.

1301323121999 is a deficient number, since it is larger than the sum of its proper divisors (15996847393).

1301323121999 is a wasteful number, since it uses less digits than its factorization.

1301323121999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39304617.

The product of its (nonzero) digits is 78732, while the sum is 44.

The spelling of 1301323121999 in words is "one trillion, three hundred one billion, three hundred twenty-three million, one hundred twenty-one thousand, nine hundred ninety-nine".