131431121402142 has 16 divisors (see below), whose sum is σ = 276697097688960. Its totient is φ = 41504564653272.

The previous prime is 131431121402093. The next prime is 131431121402143. The reversal of 131431121402142 is 241204121134131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131431121402143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 576452286738 + ... + 576452286965.

It is an arithmetic number, because the mean of its divisors is an integer number (17293568605560).

Almost surely, 2^{131431121402142} is an apocalyptic number.

131431121402142 is an abundant number, since it is smaller than the sum of its proper divisors (145265976286818).

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

131431121402142 is a wasteful number, since it uses less digits than its factorization.

131431121402142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1152904573727.

The product of its (nonzero) digits is 4608, while the sum is 30.

Adding to 131431121402142 its reverse (241204121134131), we get a palindrome (372635242536273).

The spelling of 131431121402142 in words is "one hundred thirty-one trillion, four hundred thirty-one billion, one hundred twenty-one million, four hundred two thousand, one hundred forty-two".