131231421130304 has 84 divisors (see below), whose sum is σ = 286264383631632. Its totient is φ = 59645224784640.

The previous prime is 131231421130279. The next prime is 131231421130309. The reversal of 131231421130304 is 403031124132131.

131231421130304 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (131231421130309) 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, 85062239 + ... + 86591265.

It is an arithmetic number, because the mean of its divisors is an integer number (3407909328948).

Almost surely, 2^{131231421130304} 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 131231421130304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (143132191815816).

131231421130304 is an abundant number, since it is smaller than the sum of its proper divisors (155032962501328).

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

131231421130304 is a wasteful number, since it uses less digits than its factorization.

131231421130304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1540144 (or 1540123 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 29.

Adding to 131231421130304 its reverse (403031124132131), we get a palindrome (534262545262435).

The spelling of 131231421130304 in words is "one hundred thirty-one trillion, two hundred thirty-one billion, four hundred twenty-one million, one hundred thirty thousand, three hundred four".