12194697233 has 2 divisors, whose sum is σ = 12194697234. Its totient is φ = 12194697232.

The previous prime is 12194697181. The next prime is 12194697239. The reversal of 12194697233 is 33279649121.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6106328449 + 6088368784 = 78143^2 + 78028^2 .

It is an emirp because it is prime and its reverse (33279649121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12194697233 - 2²⁴ = 12177920017 is a prime.

It is not a weakly prime, because it can be changed into another prime (12194697239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6097348616 + 6097348617.

It is an arithmetic number, because the mean of its divisors is an integer number (6097348617).

Almost surely, 2^12194697233 is an apocalyptic number.

It is an amenable number.

12194697233 is a deficient number, since it is larger than the sum of its proper divisors (1).

12194697233 is an equidigital number, since it uses as much as digits as its factorization.

12194697233 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 489888, while the sum is 47.

The spelling of 12194697233 in words is "twelve billion, one hundred ninety-four million, six hundred ninety-seven thousand, two hundred thirty-three".