231032643 has 8 divisors (see below), whose sum is σ = 309888768. Its totient is φ = 153099144.

The previous prime is 231032639. The next prime is 231032653. The reversal of 231032643 is 346230132.

231032643 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 231032643 - 2² = 231032639 is a prime.

It is not an unprimeable number, because it can be changed into a prime (231032623) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 230071 + ... + 231072.

It is an arithmetic number, because the mean of its divisors is an integer number (38736096).

Almost surely, 2^231032643 is an apocalyptic number.

231032643 is a deficient number, since it is larger than the sum of its proper divisors (78856125).

231032643 is a wasteful number, since it uses less digits than its factorization.

231032643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 461313.

The product of its (nonzero) digits is 2592, while the sum is 24.

The square root of 231032643 is about 15199.7579914945. The cubic root of 231032643 is about 613.6081445779.

Adding to 231032643 its reverse (346230132), we get a palindrome (577262775).

The spelling of 231032643 in words is "two hundred thirty-one million, thirty-two thousand, six hundred forty-three".