143491170231 has 6 divisors (see below), whose sum is σ = 207265023680. Its totient is φ = 95660780148.

The previous prime is 143491170217. The next prime is 143491170289. The reversal of 143491170231 is 132071194341.

It is a happy number.

143491170231 is a `hidden beast` number, since 1 + 4 + 349 + 11 + 70 + 231 = 666.

It is not a de Polignac number, because 143491170231 - 2⁹ = 143491169719 is a prime.

It is a super-2 number, since 2×143491170231² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143491170211) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7971731671 + ... + 7971731688.

Almost surely, 2^143491170231 is an apocalyptic number.

143491170231 is a deficient number, since it is larger than the sum of its proper divisors (63773853449).

143491170231 is a wasteful number, since it uses less digits than its factorization.

143491170231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15943463365 (or 15943463362 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The spelling of 143491170231 in words is "one hundred forty-three billion, four hundred ninety-one million, one hundred seventy thousand, two hundred thirty-one".