12233020991 has 2 divisors, whose sum is σ = 12233020992. Its totient is φ = 12233020990.

The previous prime is 12233020979. The next prime is 12233021039. The reversal of 12233020991 is 19902033221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12233020991 - 2³⁰ = 11159279167 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12233020691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6116510495 + 6116510496.

It is an arithmetic number, because the mean of its divisors is an integer number (6116510496).

Almost surely, 2^12233020991 is an apocalyptic number.

12233020991 is a deficient number, since it is larger than the sum of its proper divisors (1).

12233020991 is an equidigital number, since it uses as much as digits as its factorization.

12233020991 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5832, while the sum is 32.

The spelling of 12233020991 in words is "twelve billion, two hundred thirty-three million, twenty thousand, nine hundred ninety-one".