231042345 has 16 divisors (see below), whose sum is σ = 370006272. Its totient is φ = 123109760.

The previous prime is 231042323. The next prime is 231042347. The reversal of 231042345 is 543240132.

It is not a de Polignac number, because 231042345 - 2⁸ = 231042089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (231042347) 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, 11440 + ... + 24350.

It is an arithmetic number, because the mean of its divisors is an integer number (23125392).

Almost surely, 2^231042345 is an apocalyptic number.

It is an amenable number.

231042345 is a deficient number, since it is larger than the sum of its proper divisors (138963927).

231042345 is a wasteful number, since it uses less digits than its factorization.

231042345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14112.

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 231042345 is about 15200.0771379622. The cubic root of 231042345 is about 613.6167337579.

Adding to 231042345 its reverse (543240132), we get a palindrome (774282477).

The spelling of 231042345 in words is "two hundred thirty-one million, forty-two thousand, three hundred forty-five".