131999047944370 has 8 divisors (see below), whose sum is σ = 237598286299884. Its totient is φ = 52799619177744.

The previous prime is 131999047944319. The next prime is 131999047944371. The reversal of 131999047944370 is 73449740999131.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 131480369987121 + 518677957249 = 11466489^2 + 720193^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×131999047944370² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 131999047944370.

It is not an unprimeable number, because it can be changed into a prime (131999047944371) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6599952397209 + ... + 6599952397228.

Almost surely, 2^{131999047944370} is an apocalyptic number.

131999047944370 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131999047944370 is a deficient number, since it is larger than the sum of its proper divisors (105599238355514).

131999047944370 is a wasteful number, since it uses less digits than its factorization.

131999047944370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13199904794444.

The product of its (nonzero) digits is 185177664, while the sum is 70.

The spelling of 131999047944370 in words is "one hundred thirty-one trillion, nine hundred ninety-nine billion, forty-seven million, nine hundred forty-four thousand, three hundred seventy".