12000029191 has 2 divisors, whose sum is σ = 12000029192. Its totient is φ = 12000029190.

The previous prime is 12000029189. The next prime is 12000029203. The reversal of 12000029191 is 19192000021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12000029191 - 2¹ = 12000029189 is a prime.

It is a super-2 number, since 2×12000029191² (a number of 21 digits) contains 22 as substring.

Together with 12000029189, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12000029491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6000014595 + 6000014596.

It is an arithmetic number, because the mean of its divisors is an integer number (6000014596).

Almost surely, 2^12000029191 is an apocalyptic number.

12000029191 is a deficient number, since it is larger than the sum of its proper divisors (1).

12000029191 is an equidigital number, since it uses as much as digits as its factorization.

12000029191 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324, while the sum is 25.

The spelling of 12000029191 in words is "twelve billion, twenty-nine thousand, one hundred ninety-one".