131718940322 has 18 divisors (see below), whose sum is σ = 198412627473. Its totient is φ = 65582565312.

The previous prime is 131718940273. The next prime is 131718940343. The reversal of 131718940322 is 223049817131.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 130551419761 + 1167520561 = 361319^2 + 34169^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=256631.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 131718940322.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 181181123 + ... + 181181849.

Almost surely, 2^131718940322 is an apocalyptic number.

131718940322 is a deficient number, since it is larger than the sum of its proper divisors (66693687151).

131718940322 is an frugal number, since it uses more digits than its factorization.

131718940322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2162 (or 1082 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 41.

The spelling of 131718940322 in words is "one hundred thirty-one billion, seven hundred eighteen million, nine hundred forty thousand, three hundred twenty-two".