231534055443 has 4 divisors (see below), whose sum is σ = 308712073928. Its totient is φ = 154356036960.

The previous prime is 231534055427. The next prime is 231534055471. The reversal of 231534055443 is 344550435132.

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

It is not a de Polignac number, because 231534055443 - 2⁴ = 231534055427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231534055843) 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, 38589009238 + ... + 38589009243.

It is an arithmetic number, because the mean of its divisors is an integer number (77178018482).

Almost surely, 2^231534055443 is an apocalyptic number.

231534055443 is a deficient number, since it is larger than the sum of its proper divisors (77178018485).

231534055443 is an equidigital number, since it uses as much as digits as its factorization.

231534055443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77178018484.

The product of its (nonzero) digits is 432000, while the sum is 39.

The spelling of 231534055443 in words is "two hundred thirty-one billion, five hundred thirty-four million, fifty-five thousand, four hundred forty-three".