131279488238 has 16 divisors (see below), whose sum is σ = 201675283920. Its totient is φ = 64070822400.

The previous prime is 131279488237. The next prime is 131279488313. The reversal of 131279488238 is 832884972131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131279488237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4091123 + ... + 4123086.

It is an arithmetic number, because the mean of its divisors is an integer number (12604705245).

Almost surely, 2^131279488238 is an apocalyptic number.

131279488238 is a deficient number, since it is larger than the sum of its proper divisors (70395795682).

131279488238 is a wasteful number, since it uses less digits than its factorization.

131279488238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8214403.

The product of its digits is 4644864, while the sum is 56.

The spelling of 131279488238 in words is "one hundred thirty-one billion, two hundred seventy-nine million, four hundred eighty-eight thousand, two hundred thirty-eight".