12035122391 has 2 divisors, whose sum is σ = 12035122392. Its totient is φ = 12035122390.

The previous prime is 12035122387. The next prime is 12035122417. The reversal of 12035122391 is 19322153021.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12035122391 - 2² = 12035122387 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12035122691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6017561195 + 6017561196.

It is an arithmetic number, because the mean of its divisors is an integer number (6017561196).

Almost surely, 2^12035122391 is an apocalyptic number.

12035122391 is a deficient number, since it is larger than the sum of its proper divisors (1).

12035122391 is an equidigital number, since it uses as much as digits as its factorization.

12035122391 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3240, while the sum is 29.

The spelling of 12035122391 in words is "twelve billion, thirty-five million, one hundred twenty-two thousand, three hundred ninety-one".