12531573453 has 24 divisors (see below), whose sum is σ = 19910802240. Its totient is φ = 6986239680.

The previous prime is 12531573451. The next prime is 12531573521. The reversal of 12531573453 is 35437513521.

It is not a de Polignac number, because 12531573453 - 2¹ = 12531573451 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12531573451) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1033593 + ... + 1045646.

It is an arithmetic number, because the mean of its divisors is an integer number (829616760).

Almost surely, 2^12531573453 is an apocalyptic number.

It is an amenable number.

12531573453 is a deficient number, since it is larger than the sum of its proper divisors (7379228787).

12531573453 is a wasteful number, since it uses less digits than its factorization.

12531573453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2079297 (or 2079290 counting only the distinct ones).

The product of its digits is 189000, while the sum is 39.

The spelling of 12531573453 in words is "twelve billion, five hundred thirty-one million, five hundred seventy-three thousand, four hundred fifty-three".