231343293 has 16 divisors (see below), whose sum is σ = 331960896. Its totient is φ = 142775040.

The previous prime is 231343291. The next prime is 231343337. The reversal of 231343293 is 392343132.

231343293 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 231343293 - 2¹ = 231343291 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 231343293.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231343291) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34071 + ... + 40292.

It is an arithmetic number, because the mean of its divisors is an integer number (20747556).

Almost surely, 2^231343293 is an apocalyptic number.

It is an amenable number.

231343293 is a deficient number, since it is larger than the sum of its proper divisors (100617603).

231343293 is a wasteful number, since it uses less digits than its factorization.

231343293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74444.

The product of its digits is 11664, while the sum is 30.

The square root of 231343293 is about 15209.9734713773. The cubic root of 231343293 is about 613.8830436798.

The spelling of 231343293 in words is "two hundred thirty-one million, three hundred forty-three thousand, two hundred ninety-three".