12131126152425 has 144 divisors (see below), whose sum is σ = 26553273731712. Its totient is φ = 5167763712000.

The previous prime is 12131126152423. The next prime is 12131126152463. The reversal of 12131126152425 is 52425162113121.

12131126152425 is a `hidden beast` number, since 1 + 2 + 1 + 3 + 1 + 12 + 615 + 2 + 4 + 25 = 666.

It is not a de Polignac number, because 12131126152425 - 2¹ = 12131126152423 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12131126152425.

It is not an unprimeable number, because it can be changed into a prime (12131126152423) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 461322 + ... + 4947228.

It is an arithmetic number, because the mean of its divisors is an integer number (184397734248).

Almost surely, 2^{12131126152425} is an apocalyptic number.

12131126152425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12131126152425 is an abundant number, since it is smaller than the sum of its proper divisors (14422147579287).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12131126152425 is a wasteful number, since it uses less digits than its factorization.

12131126152425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4486048 (or 4486040 counting only the distinct ones).

The product of its digits is 28800, while the sum is 36.

Adding to 12131126152425 its reverse (52425162113121), we get a palindrome (64556288265546).

The spelling of 12131126152425 in words is "twelve trillion, one hundred thirty-one billion, one hundred twenty-six million, one hundred fifty-two thousand, four hundred twenty-five".