12023321999 has 32 divisors (see below), whose sum is σ = 13769011200. Its totient is φ = 10407398400.

The previous prime is 12023321987. The next prime is 12023322011. The reversal of 12023321999 is 99912332021.

It is an interprime number because it is at equal distance from previous prime (12023321987) and next prime (12023322011).

It is a cyclic number.

It is not a de Polignac number, because 12023321999 - 2³² = 7728354703 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12023321929) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17864927 + ... + 17865599.

It is an arithmetic number, because the mean of its divisors is an integer number (430281600).

Almost surely, 2^12023321999 is an apocalyptic number.

12023321999 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

12023321999 is a deficient number, since it is larger than the sum of its proper divisors (1745689201).

12023321999 is a wasteful number, since it uses less digits than its factorization.

12023321999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1335.

The product of its (nonzero) digits is 52488, while the sum is 41.

The spelling of 12023321999 in words is "twelve billion, twenty-three million, three hundred twenty-one thousand, nine hundred ninety-nine".