131201421042342 has 32 divisors (see below), whose sum is σ = 306863124302592. Its totient is φ = 36614350057824.

The previous prime is 131201421042269. The next prime is 131201421042347. The reversal of 131201421042342 is 243240124102131.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131201421042347) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36323758173 + ... + 36323761784.

It is an arithmetic number, because the mean of its divisors is an integer number (9589472634456).

Almost surely, 2^{131201421042342} is an apocalyptic number.

131201421042342 is an abundant number, since it is smaller than the sum of its proper divisors (175661703260250).

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

131201421042342 is a wasteful number, since it uses less digits than its factorization.

131201421042342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72647520012.

The product of its (nonzero) digits is 9216, while the sum is 30.

Adding to 131201421042342 its reverse (243240124102131), we get a palindrome (374441545144473).

The spelling of 131201421042342 in words is "one hundred thirty-one trillion, two hundred one billion, four hundred twenty-one million, forty-two thousand, three hundred forty-two".