12235391999 has 2 divisors, whose sum is σ = 12235392000. Its totient is φ = 12235391998.

The previous prime is 12235391977. The next prime is 12235392053. The reversal of 12235391999 is 99919353221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12235391999 - 2⁸ = 12235391743 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12235391999.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12235321999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6117695999 + 6117696000.

It is an arithmetic number, because the mean of its divisors is an integer number (6117696000).

Almost surely, 2^12235391999 is an apocalyptic number.

12235391999 is a deficient number, since it is larger than the sum of its proper divisors (1).

12235391999 is an equidigital number, since it uses as much as digits as its factorization.

12235391999 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1180980, while the sum is 53.

The spelling of 12235391999 in words is "twelve billion, two hundred thirty-five million, three hundred ninety-one thousand, nine hundred ninety-nine".