131155434342 has 48 divisors (see below), whose sum is σ = 284985520560. Its totient is φ = 43593216000.

The previous prime is 131155434337. The next prime is 131155434349. The reversal of 131155434342 is 243434551131.

131155434342 is a `hidden beast` number, since 1 + 31 + 1 + 5 + 543 + 43 + 42 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 131155434297 and 131155434306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131155434349) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9327217 + ... + 9341267.

It is an arithmetic number, because the mean of its divisors is an integer number (5937198345).

Almost surely, 2^131155434342 is an apocalyptic number.

131155434342 is an abundant number, since it is smaller than the sum of its proper divisors (153830086218).

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

131155434342 is a wasteful number, since it uses less digits than its factorization.

131155434342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15509 (or 15506 counting only the distinct ones).

The product of its digits is 86400, while the sum is 36.

Adding to 131155434342 its reverse (243434551131), we get a palindrome (374589985473).

The spelling of 131155434342 in words is "one hundred thirty-one billion, one hundred fifty-five million, four hundred thirty-four thousand, three hundred forty-two".