12023201997 has 12 divisors (see below), whose sum is σ = 17370884544. Its totient is φ = 8013604680.

The previous prime is 12023201987. The next prime is 12023202001. The reversal of 12023201997 is 79910232021.

It is not a de Polignac number, because 12023201997 - 2⁶ = 12023201933 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12023201917) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 113829 + ... + 192362.

It is an arithmetic number, because the mean of its divisors is an integer number (1447573712).

Almost surely, 2^12023201997 is an apocalyptic number.

It is an amenable number.

12023201997 is a deficient number, since it is larger than the sum of its proper divisors (5347682547).

12023201997 is a wasteful number, since it uses less digits than its factorization.

12023201997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310560 (or 310557 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 36.

The spelling of 12023201997 in words is "twelve billion, twenty-three million, two hundred one thousand, nine hundred ninety-seven".