131230422520000 has 140 divisors (see below), whose sum is σ = 325447762285800. Its totient is φ = 52485883648000.

The previous prime is 131230422519949. The next prime is 131230422520007. The reversal of 131230422520000 is 25224032131.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (131230422520007) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 341287851 + ... + 341672149.

It is an arithmetic number, because the mean of its divisors is an integer number (2324626873470).

Almost surely, 2^{131230422520000} is an apocalyptic number.

131230422520000 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 131230422520000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (162723881142900).

131230422520000 is an abundant number, since it is smaller than the sum of its proper divisors (194217339765800).

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

131230422520000 is an frugal number, since it uses more digits than its factorization.

131230422520000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392868 (or 392843 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

Adding to 131230422520000 its reverse (25224032131), we get a palindrome (131255646552131).

The spelling of 131230422520000 in words is "one hundred thirty-one trillion, two hundred thirty billion, four hundred twenty-two million, five hundred twenty thousand".