12530205031 has 16 divisors (see below), whose sum is σ = 13017058560. Its totient is φ = 12052635840.

The previous prime is 12530205013. The next prime is 12530205041. The reversal of 12530205031 is 13050203521.

It is a cyclic number.

It is not a de Polignac number, because 12530205031 - 2⁷ = 12530204903 is a prime.

It is a super-2 number, since 2×12530205031² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12530204993 and 12530205011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12530205001) 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, 3548875 + ... + 3552403.

It is an arithmetic number, because the mean of its divisors is an integer number (813566160).

Almost surely, 2^12530205031 is an apocalyptic number.

12530205031 is a deficient number, since it is larger than the sum of its proper divisors (486853529).

12530205031 is a wasteful number, since it uses less digits than its factorization.

12530205031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4806.

The product of its (nonzero) digits is 900, while the sum is 22.

Adding to 12530205031 its reverse (13050203521), we get a palindrome (25580408552).

The spelling of 12530205031 in words is "twelve billion, five hundred thirty million, two hundred five thousand, thirty-one".