1231330319999 has 8 divisors (see below), whose sum is σ = 1326056781840. Its totient is φ = 1136605107456.

The previous prime is 1231330319963. The next prime is 1231330320053. The reversal of 1231330319999 is 9999130331321.

It is a happy number.

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

It is not a de Polignac number, because 1231330319999 - 2²⁰ = 1231329271423 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1231330319999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1231330319299) 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, 3186464 + ... + 3551930.

It is an arithmetic number, because the mean of its divisors is an integer number (165757097730).

Almost surely, 2^{1231330319999} is an apocalyptic number.

1231330319999 is a deficient number, since it is larger than the sum of its proper divisors (94726461841).

1231330319999 is a wasteful number, since it uses less digits than its factorization.

1231330319999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 624649.

The product of its (nonzero) digits is 1062882, while the sum is 53.

The spelling of 1231330319999 in words is "one trillion, two hundred thirty-one billion, three hundred thirty million, three hundred nineteen thousand, nine hundred ninety-nine".