12130311525 has 12 divisors (see below), whose sum is σ = 20055448512. Its totient is φ = 6469499440.

The previous prime is 12130311511. The next prime is 12130311541. The reversal of 12130311525 is 52511303121.

It is not a de Polignac number, because 12130311525 - 2⁸ = 12130311269 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12130311495 and 12130311504.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 80868669 + ... + 80868818.

It is an arithmetic number, because the mean of its divisors is an integer number (1671287376).

Almost surely, 2^12130311525 is an apocalyptic number.

12130311525 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12130311525 is a deficient number, since it is larger than the sum of its proper divisors (7925136987).

12130311525 is a wasteful number, since it uses less digits than its factorization.

12130311525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161737500 (or 161737495 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 24.

Adding to 12130311525 its reverse (52511303121), we get a palindrome (64641614646).

The spelling of 12130311525 in words is "twelve billion, one hundred thirty million, three hundred eleven thousand, five hundred twenty-five".