131240230400 has 120 divisors (see below), whose sum is σ = 325399481880. Its totient is φ = 52457103360.

The previous prime is 131240230339. The next prime is 131240230409. The reversal of 131240230400 is 4032042131.

131240230400 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131240230409) 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, 22358666 + ... + 22364534.

It is an arithmetic number, because the mean of its divisors is an integer number (2711662349).

Almost surely, 2^131240230400 is an apocalyptic number.

131240230400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 131240230400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (162699740940).

131240230400 is an abundant number, since it is smaller than the sum of its proper divisors (194159251480).

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

131240230400 is an equidigital number, since it uses as much as digits as its factorization.

131240230400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7644 (or 7623 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 131240230400 its reverse (4032042131), we get a palindrome (135272272531).

The spelling of 131240230400 in words is "one hundred thirty-one billion, two hundred forty million, two hundred thirty thousand, four hundred".