231159541143 has 4 divisors (see below), whose sum is σ = 308212721528. Its totient is φ = 154106360760.

The previous prime is 231159541133. The next prime is 231159541147. The reversal of 231159541143 is 341145951132.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 231159541143 - 2⁶ = 231159541079 is a prime.

It is a super-2 number, since 2×231159541143² (a number of 24 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 (231159541147) 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, 38526590188 + ... + 38526590193.

It is an arithmetic number, because the mean of its divisors is an integer number (77053180382).

Almost surely, 2^231159541143 is an apocalyptic number.

231159541143 is a deficient number, since it is larger than the sum of its proper divisors (77053180385).

231159541143 is an equidigital number, since it uses as much as digits as its factorization.

231159541143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77053180384.

The product of its digits is 64800, while the sum is 39.

The spelling of 231159541143 in words is "two hundred thirty-one billion, one hundred fifty-nine million, five hundred forty-one thousand, one hundred forty-three".