999023232133 has 4 divisors (see below), whose sum is σ = 1006649363808. Its totient is φ = 991397100460.

The previous prime is 999023232091. The next prime is 999023232149. The reversal of 999023232133 is 331232320999.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 999023232133 - 2³⁷ = 861584278661 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 (999023232173) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3813065641 + ... + 3813065902.

It is an arithmetic number, because the mean of its divisors is an integer number (251662340952).

Almost surely, 2^999023232133 is an apocalyptic number.

It is an amenable number.

999023232133 is a deficient number, since it is larger than the sum of its proper divisors (7626131675).

999023232133 is a wasteful number, since it uses less digits than its factorization.

999023232133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7626131674.

The product of its (nonzero) digits is 472392, while the sum is 46.

The spelling of 999023232133 in words is "nine hundred ninety-nine billion, twenty-three million, two hundred thirty-two thousand, one hundred thirty-three".