131521451253342 has 32 divisors (see below), whose sum is σ = 265709197908000. Its totient is φ = 43396868026368.

The previous prime is 131521451253331. The next prime is 131521451253497. The reversal of 131521451253342 is 243352154125131.

It is a junction number, because it is equal to n+sod(n) for n = 131521451253294 and 131521451253303.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 95168643 + ... + 96540734.

It is an arithmetic number, because the mean of its divisors is an integer number (8303412434625).

Almost surely, 2^{131521451253342} is an apocalyptic number.

131521451253342 is an abundant number, since it is smaller than the sum of its proper divisors (134187746654658).

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

131521451253342 is a wasteful number, since it uses less digits than its factorization.

131521451253342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191710540.

The product of its digits is 432000, while the sum is 42.

The spelling of 131521451253342 in words is "one hundred thirty-one trillion, five hundred twenty-one billion, four hundred fifty-one million, two hundred fifty-three thousand, three hundred forty-two".