131353991218 has 8 divisors (see below), whose sum is σ = 197033154048. Its totient is φ = 65676273204.

The previous prime is 131353991191. The next prime is 131353991243. The reversal of 131353991218 is 812199353131.

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

It is a super-2 number, since 2×131353991218² (a number of 23 digits) contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 94546 + ... + 521197.

It is an arithmetic number, because the mean of its divisors is an integer number (24629144256).

Almost surely, 2^131353991218 is an apocalyptic number.

131353991218 is a deficient number, since it is larger than the sum of its proper divisors (65679162830).

131353991218 is a wasteful number, since it uses less digits than its factorization.

131353991218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 722408.

The product of its digits is 174960, while the sum is 46.

The spelling of 131353991218 in words is "one hundred thirty-one billion, three hundred fifty-three million, nine hundred ninety-one thousand, two hundred eighteen".