131421042342 has 24 divisors (see below), whose sum is σ = 288349969440. Its totient is φ = 43252494480.

The previous prime is 131421042317. The next prime is 131421042343. The reversal of 131421042342 is 243240124131.

131421042342 is a `hidden beast` number, since 1 + 3 + 1 + 421 + 0 + 4 + 234 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131421042343) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 46208509 + ... + 46211352.

It is an arithmetic number, because the mean of its divisors is an integer number (12014582060).

Almost surely, 2^131421042342 is an apocalyptic number.

131421042342 is an abundant number, since it is smaller than the sum of its proper divisors (156928927098).

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

131421042342 is a wasteful number, since it uses less digits than its factorization.

131421042342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92419948 (or 92419945 counting only the distinct ones).

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

Adding to 131421042342 its reverse (243240124131), we get a palindrome (374661166473).

The spelling of 131421042342 in words is "one hundred thirty-one billion, four hundred twenty-one million, forty-two thousand, three hundred forty-two".