131403021042342 has 128 divisors (see below), whose sum is σ = 304604100910080. Its totient is φ = 37014479124480.

The previous prime is 131403021042329. The next prime is 131403021042361. The reversal of 131403021042342 is 243240120304131.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2684244538 + ... + 2684293490.

It is an arithmetic number, because the mean of its divisors is an integer number (2379719538360).

Almost surely, 2^{131403021042342} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 131403021042342, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (152302050455040).

131403021042342 is an abundant number, since it is smaller than the sum of its proper divisors (173201079867738).

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

131403021042342 is a wasteful number, since it uses less digits than its factorization.

131403021042342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51118.

The product of its (nonzero) digits is 13824, while the sum is 30.

Adding to 131403021042342 its reverse (243240120304131), we get a palindrome (374643141346473).

The spelling of 131403021042342 in words is "one hundred thirty-one trillion, four hundred three billion, twenty-one million, forty-two thousand, three hundred forty-two".