12126152029 has 4 divisors (see below), whose sum is σ = 12126378880. Its totient is φ = 12125925180.

The previous prime is 12126151991. The next prime is 12126152053. The reversal of 12126152029 is 92025162121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12126152029 - 2²⁷ = 11991934301 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12126152099) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15934 + ... + 156544.

It is an arithmetic number, because the mean of its divisors is an integer number (3031594720).

Almost surely, 2^12126152029 is an apocalyptic number.

It is an amenable number.

12126152029 is a deficient number, since it is larger than the sum of its proper divisors (226851).

12126152029 is an equidigital number, since it uses as much as digits as its factorization.

12126152029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226850.

The product of its (nonzero) digits is 4320, while the sum is 31.

The spelling of 12126152029 in words is "twelve billion, one hundred twenty-six million, one hundred fifty-two thousand, twenty-nine".