999324123015331 has 8 divisors (see below), whose sum is σ = 1001482570466784. Its totient is φ = 997167965696640.

The previous prime is 999324123015293. The next prime is 999324123015347. The reversal of 999324123015331 is 133510321423999.

It is a happy number.

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 999324123015331 - 2²⁵ = 999324089460899 is a prime.

It is a super-2 number, since 2×999324123015331² (a number of 31 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (999324123015371) 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, 571659526 + ... + 573404971.

It is an arithmetic number, because the mean of its divisors is an integer number (125185321308348).

Almost surely, 2^{999324123015331} is an apocalyptic number.

999324123015331 is a deficient number, since it is larger than the sum of its proper divisors (2158447451453).

999324123015331 is a wasteful number, since it uses less digits than its factorization.

999324123015331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1145066381.

The product of its (nonzero) digits is 4723920, while the sum is 55.

The spelling of 999324123015331 in words is "nine hundred ninety-nine trillion, three hundred twenty-four billion, one hundred twenty-three million, fifteen thousand, three hundred thirty-one".