12102100291 has 2 divisors, whose sum is σ = 12102100292. Its totient is φ = 12102100290.

The previous prime is 12102100249. The next prime is 12102100327. The reversal of 12102100291 is 19200120121.

It is a happy number.

12102100291 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12102100291 - 2⁷ = 12102100163 is a prime.

It is not a weakly prime, because it can be changed into another prime (12102100091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6051050145 + 6051050146.

It is an arithmetic number, because the mean of its divisors is an integer number (6051050146).

Almost surely, 2^12102100291 is an apocalyptic number.

12102100291 is a deficient number, since it is larger than the sum of its proper divisors (1).

12102100291 is an equidigital number, since it uses as much as digits as its factorization.

12102100291 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 19.

The spelling of 12102100291 in words is "twelve billion, one hundred two million, one hundred thousand, two hundred ninety-one".