131278112604 has 144 divisors (see below), whose sum is σ = 345253708800. Its totient is φ = 42028299648.

The previous prime is 131278112591. The next prime is 131278112611. The reversal of 131278112604 is 406211872131.

131278112604 is a `hidden beast` number, since 1 + 31 + 2 + 7 + 8 + 1 + 12 + 604 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 99527857 + ... + 99529175.

It is an arithmetic number, because the mean of its divisors is an integer number (2397595200).

Almost surely, 2^131278112604 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 131278112604, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (172626854400).

131278112604 is an abundant number, since it is smaller than the sum of its proper divisors (213975596196).

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

131278112604 is a wasteful number, since it uses less digits than its factorization.

131278112604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2432 (or 2427 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

Adding to 131278112604 its reverse (406211872131), we get a palindrome (537489984735).

The spelling of 131278112604 in words is "one hundred thirty-one billion, two hundred seventy-eight million, one hundred twelve thousand, six hundred four".