999212032212323 has 4 divisors (see below), whose sum is σ = 1011250731395688. Its totient is φ = 987173333028960.

The previous prime is 999212032212301. The next prime is 999212032212347. The reversal of 999212032212323 is 323212230212999.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 999212032212323 - 2²⁶ = 999211965103459 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (999212032215323) 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, 6019349591558 + ... + 6019349591723.

It is an arithmetic number, because the mean of its divisors is an integer number (252812682848922).

Almost surely, 2^{999212032212323} is an apocalyptic number.

999212032212323 is a deficient number, since it is larger than the sum of its proper divisors (12038699183365).

999212032212323 is a wasteful number, since it uses less digits than its factorization.

999212032212323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12038699183364.

The product of its (nonzero) digits is 1259712, while the sum is 50.

The spelling of 999212032212323 in words is "nine hundred ninety-nine trillion, two hundred twelve billion, thirty-two million, two hundred twelve thousand, three hundred twenty-three".