231341442243 has 4 divisors (see below), whose sum is σ = 308455256328. Its totient is φ = 154227628160.

The previous prime is 231341442173. The next prime is 231341442251. The reversal of 231341442243 is 342244143132.

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

It is a cyclic number.

It is not a de Polignac number, because 231341442243 - 2²⁴ = 231324665027 is a prime.

It is not an unprimeable number, because it can be changed into a prime (231341442253) 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, 38556907038 + ... + 38556907043.

It is an arithmetic number, because the mean of its divisors is an integer number (77113814082).

Almost surely, 2^231341442243 is an apocalyptic number.

231341442243 is a deficient number, since it is larger than the sum of its proper divisors (77113814085).

231341442243 is an equidigital number, since it uses as much as digits as its factorization.

231341442243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77113814084.

The product of its digits is 55296, while the sum is 33.

Adding to 231341442243 its reverse (342244143132), we get a palindrome (573585585375).

The spelling of 231341442243 in words is "two hundred thirty-one billion, three hundred forty-one million, four hundred forty-two thousand, two hundred forty-three".