12102111193 has 2 divisors, whose sum is σ = 12102111194. Its totient is φ = 12102111192.

The previous prime is 12102111149. The next prime is 12102111247. The reversal of 12102111193 is 39111120121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10007401369 + 2094709824 = 100037^2 + 45768^2 .

It is an emirp because it is prime and its reverse (39111120121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12102111193 - 2³³ = 3512176601 is a prime.

It is a super-2 number, since 2×12102111193² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12102111143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6051055596 + 6051055597.

It is an arithmetic number, because the mean of its divisors is an integer number (6051055597).

Almost surely, 2^12102111193 is an apocalyptic number.

It is an amenable number.

12102111193 is a deficient number, since it is larger than the sum of its proper divisors (1).

12102111193 is an equidigital number, since it uses as much as digits as its factorization.

12102111193 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 22.

The spelling of 12102111193 in words is "twelve billion, one hundred two million, one hundred eleven thousand, one hundred ninety-three".