12231303129 has 8 divisors (see below), whose sum is σ = 18120449120. Its totient is φ = 8154202068.

The previous prime is 12231303113. The next prime is 12231303131. The reversal of 12231303129 is 92130313221.

12231303129 is a `hidden beast` number, since 1 + 2 + 231 + 303 + 129 = 666.

It is not a de Polignac number, because 12231303129 - 2⁴ = 12231303113 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 453011227 = 12231303129 / (1 + 2 + 2 + 3 + 1 + 3 + 0 + 3 + 1 + 2 + 9).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12231303109) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 226505587 + ... + 226505640.

It is an arithmetic number, because the mean of its divisors is an integer number (2265056140).

Almost surely, 2^12231303129 is an apocalyptic number.

It is an amenable number.

12231303129 is a deficient number, since it is larger than the sum of its proper divisors (5889145991).

12231303129 is an equidigital number, since it uses as much as digits as its factorization.

12231303129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 453011236 (or 453011230 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The spelling of 12231303129 in words is "twelve billion, two hundred thirty-one million, three hundred three thousand, one hundred twenty-nine".