12531601451 has 16 divisors (see below), whose sum is σ = 13163212800. Its totient is φ = 11907490848.

The previous prime is 12531601403. The next prime is 12531601463. The reversal of 12531601451 is 15410613521.

It is a cyclic number.

It is not a de Polignac number, because 12531601451 - 2³⁰ = 11457859627 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12531601471) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2267870 + ... + 2273388.

It is an arithmetic number, because the mean of its divisors is an integer number (822700800).

Almost surely, 2^12531601451 is an apocalyptic number.

12531601451 is a deficient number, since it is larger than the sum of its proper divisors (631611349).

12531601451 is a wasteful number, since it uses less digits than its factorization.

12531601451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6178.

The product of its (nonzero) digits is 3600, while the sum is 29.

The spelling of 12531601451 in words is "twelve billion, five hundred thirty-one million, six hundred one thousand, four hundred fifty-one".