231843432073 has 4 divisors (see below), whose sum is σ = 252920107728. Its totient is φ = 210766756420.

The previous prime is 231843432049. The next prime is 231843432097. The reversal of 231843432073 is 370234348132.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (231843432049) and next prime (231843432097).

It is not a de Polignac number, because 231843432073 - 2¹³ = 231843423881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231843432673) 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, 10538337811 + ... + 10538337832.

It is an arithmetic number, because the mean of its divisors is an integer number (63230026932).

Almost surely, 2^231843432073 is an apocalyptic number.

It is an amenable number.

231843432073 is a deficient number, since it is larger than the sum of its proper divisors (21076675655).

231843432073 is a wasteful number, since it uses less digits than its factorization.

231843432073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21076675654.

The product of its (nonzero) digits is 290304, while the sum is 40.

The spelling of 231843432073 in words is "two hundred thirty-one billion, eight hundred forty-three million, four hundred thirty-two thousand, seventy-three".