131455422120 has 256 divisors, whose sum is σ = 447451361280. Its totient is φ = 30615782400.

The previous prime is 131455422061. The next prime is 131455422127. The reversal of 131455422120 is 21224554131.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (131455422127) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3443377 + ... + 3481343.

It is an arithmetic number, because the mean of its divisors is an integer number (1747856880).

Almost surely, 2^131455422120 is an apocalyptic number.

131455422120 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 131455422120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (223725680640).

131455422120 is an abundant number, since it is smaller than the sum of its proper divisors (315995939160).

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

131455422120 is a wasteful number, since it uses less digits than its factorization.

131455422120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38096 (or 38092 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 30.

Adding to 131455422120 its reverse (21224554131), we get a palindrome (152679976251).

The spelling of 131455422120 in words is "one hundred thirty-one billion, four hundred fifty-five million, four hundred twenty-two thousand, one hundred twenty".