12623601091 has 2 divisors, whose sum is σ = 12623601092. Its totient is φ = 12623601090.

The previous prime is 12623601017. The next prime is 12623601097. The reversal of 12623601091 is 19010632621.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12623601091 - 2¹³ = 12623592899 is a prime.

It is not a weakly prime, because it can be changed into another prime (12623601097) 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, 6311800545 + 6311800546.

It is an arithmetic number, because the mean of its divisors is an integer number (6311800546).

Almost surely, 2^12623601091 is an apocalyptic number.

12623601091 is a deficient number, since it is larger than the sum of its proper divisors (1).

12623601091 is an equidigital number, since it uses as much as digits as its factorization.

12623601091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 31.

The spelling of 12623601091 in words is "twelve billion, six hundred twenty-three million, six hundred one thousand, ninety-one".