131321062063828 has 36 divisors (see below), whose sum is σ = 287896174530132. Its totient is φ = 51951189386880.

The previous prime is 131321062063823. The next prime is 131321062063889. The reversal of 131321062063828 is 828360260123131.

It can be written as a sum of positive squares in 2 ways, for example, as 39754765199044 + 91566296864784 = 6305138^2 + 9569028^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131321062063823) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25769436633 + ... + 25769441728.

Almost surely, 2^{131321062063828} is an apocalyptic number.

It is an amenable number.

131321062063828 is an abundant number, since it is smaller than the sum of its proper divisors (156575112466304).

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

131321062063828 is a wasteful number, since it uses less digits than its factorization.

131321062063828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51538878392 (or 51538878383 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 46.

The spelling of 131321062063828 in words is "one hundred thirty-one trillion, three hundred twenty-one billion, sixty-two million, sixty-three thousand, eight hundred twenty-eight".