131123404422 has 40 divisors (see below), whose sum is σ = 293895181800. Its totient is φ = 43695658656.

The previous prime is 131123404421. The next prime is 131123404481. The reversal of 131123404422 is 224404321131.

131123404422 is a `hidden beast` number, since 1 + 3 + 1 + 1 + 234 + 0 + 4 + 422 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131123404421) 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, 482154 + ... + 703362.

It is an arithmetic number, because the mean of its divisors is an integer number (7347379545).

Almost surely, 2^131123404422 is an apocalyptic number.

131123404422 is an abundant number, since it is smaller than the sum of its proper divisors (162771777378).

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

131123404422 is a wasteful number, since it uses less digits than its factorization.

131123404422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224882 (or 224873 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 131123404422 its reverse (224404321131), we get a palindrome (355527725553).

The spelling of 131123404422 in words is "one hundred thirty-one billion, one hundred twenty-three million, four hundred four thousand, four hundred twenty-two".