12124431312130 has 32 divisors (see below), whose sum is σ = 23109011560944. Its totient is φ = 4564240551936.

The previous prime is 12124431312089. The next prime is 12124431312139. The reversal of 12124431312130 is 3121313442121.

It can be written as a sum of positive squares in 8 ways, for example, as 177198060601 + 11947233251529 = 420949^2 + 3456477^2 .

It is not an unprimeable number, because it can be changed into a prime (12124431312139) 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, 1149354 + ... + 5056666.

Almost surely, 2^{12124431312130} is an apocalyptic number.

12124431312130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12124431312130 is a deficient number, since it is larger than the sum of its proper divisors (10984580248814).

12124431312130 is a wasteful number, since it uses less digits than its factorization.

12124431312130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3925590.

The product of its (nonzero) digits is 3456, while the sum is 28.

Adding to 12124431312130 its reverse (3121313442121), we get a palindrome (15245744754251).

The spelling of 12124431312130 in words is "twelve trillion, one hundred twenty-four billion, four hundred thirty-one million, three hundred twelve thousand, one hundred thirty".