131344355435240 has 32 divisors (see below), whose sum is σ = 295534589008680. Its totient is φ = 52536001857792.

The previous prime is 131344355435233. The next prime is 131344355435311. The reversal of 131344355435240 is 42534553443131.

It can be written as a sum of positive squares in 4 ways, for example, as 81341892012676 + 50002463422564 = 9018974^2 + 7071242^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53161907 + ... + 55577666.

Almost surely, 2^{131344355435240} is an apocalyptic number.

131344355435240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131344355435240 is an abundant number, since it is smaller than the sum of its proper divisors (164190233573440).

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

131344355435240 is a wasteful number, since it uses less digits than its factorization.

131344355435240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108769781 (or 108769777 counting only the distinct ones).

The product of its (nonzero) digits is 5184000, while the sum is 47.

The spelling of 131344355435240 in words is "one hundred thirty-one trillion, three hundred forty-four billion, three hundred fifty-five million, four hundred thirty-five thousand, two hundred forty".