131122442142 has 40 divisors (see below), whose sum is σ = 295434731592. Its totient is φ = 43465993200.

The previous prime is 131122442111. The next prime is 131122442159. The reversal of 131122442142 is 241244221131.

131122442142 is a `hidden beast` number, since 1 + 3 + 11 + 224 + 421 + 4 + 2 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2206584 + ... + 2265227.

Almost surely, 2^131122442142 is an apocalyptic number.

131122442142 is an abundant number, since it is smaller than the sum of its proper divisors (164312289450).

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

131122442142 is a wasteful number, since it uses less digits than its factorization.

131122442142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4472006 (or 4471997 counting only the distinct ones).

The product of its digits is 3072, while the sum is 27.

Adding to 131122442142 its reverse (241244221131), we get a palindrome (372366663273).

The spelling of 131122442142 in words is "one hundred thirty-one billion, one hundred twenty-two million, four hundred forty-two thousand, one hundred forty-two".