12031452657 has 12 divisors (see below), whose sum is σ = 19861445760. Its totient is φ = 6875115768.

The previous prime is 12031452649. The next prime is 12031452679. The reversal of 12031452657 is 75625413021.

12031452657 is a `hidden beast` number, since 120 + 3 + 1 + 4 + 526 + 5 + 7 = 666.

12031452657 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12031452657 - 2³ = 12031452649 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12031452617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 95487657 + ... + 95487782.

It is an arithmetic number, because the mean of its divisors is an integer number (1655120480).

Almost surely, 2^12031452657 is an apocalyptic number.

It is an amenable number.

12031452657 is a deficient number, since it is larger than the sum of its proper divisors (7829993103).

12031452657 is a wasteful number, since it uses less digits than its factorization.

12031452657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190975452 (or 190975449 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

Adding to 12031452657 its reverse (75625413021), we get a palindrome (87656865678).

The spelling of 12031452657 in words is "twelve billion, thirty-one million, four hundred fifty-two thousand, six hundred fifty-seven".