12431220130044 has 48 divisors (see below), whose sum is σ = 32637052403200. Its totient is φ = 4091287634928.

The previous prime is 12431220130013. The next prime is 12431220130051. The reversal of 12431220130044 is 44003102213421.

12431220130044 is a `hidden beast` number, since 1 + 2 + 4 + 312 + 2 + 0 + 1 + 300 + 44 = 666.

It is a super-2 number, since 2×12431220130044² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 728497102 + ... + 728514165.

Almost surely, 2^{12431220130044} is an apocalyptic number.

It is an amenable number.

12431220130044 is an abundant number, since it is smaller than the sum of its proper divisors (20205832273156).

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

12431220130044 is a wasteful number, since it uses less digits than its factorization.

12431220130044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1457011359 (or 1457011351 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 12431220130044 its reverse (44003102213421), we get a palindrome (56434322343465).

The spelling of 12431220130044 in words is "twelve trillion, four hundred thirty-one billion, two hundred twenty million, one hundred thirty thousand, forty-four".