12102479819 has 2 divisors, whose sum is σ = 12102479820. Its totient is φ = 12102479818.

The previous prime is 12102479789. The next prime is 12102479821. The reversal of 12102479819 is 91897420121.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12102479819 - 2²⁸ = 11834044363 is a prime.

It is a super-2 number, since 2×12102479819² (a number of 21 digits) contains 22 as substring.

Together with 12102479821, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12102479819.

It is not a weakly prime, because it can be changed into another prime (12102478819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6051239909 + 6051239910.

It is an arithmetic number, because the mean of its divisors is an integer number (6051239910).

Almost surely, 2^12102479819 is an apocalyptic number.

12102479819 is a deficient number, since it is larger than the sum of its proper divisors (1).

12102479819 is an equidigital number, since it uses as much as digits as its factorization.

12102479819 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72576, while the sum is 44.

The spelling of 12102479819 in words is "twelve billion, one hundred two million, four hundred seventy-nine thousand, eight hundred nineteen".