12133178389 has 2 divisors, whose sum is σ = 12133178390. Its totient is φ = 12133178388.

The previous prime is 12133178303. The next prime is 12133178461. The reversal of 12133178389 is 98387133121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12131260164 + 1918225 = 110142^2 + 1385^2 .

It is an emirp because it is prime and its reverse (98387133121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12133178389 - 2²⁷ = 11998960661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12133178989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6066589194 + 6066589195.

It is an arithmetic number, because the mean of its divisors is an integer number (6066589195).

Almost surely, 2^12133178389 is an apocalyptic number.

It is an amenable number.

12133178389 is a deficient number, since it is larger than the sum of its proper divisors (1).

12133178389 is an equidigital number, since it uses as much as digits as its factorization.

12133178389 is an evil number, because the sum of its binary digits is even.

The product of its digits is 217728, while the sum is 46.

The spelling of 12133178389 in words is "twelve billion, one hundred thirty-three million, one hundred seventy-eight thousand, three hundred eighty-nine".