231603042 has 32 divisors (see below), whose sum is σ = 509313024. Its totient is φ = 69627600.

The previous prime is 231603041. The next prime is 231603049. The reversal of 231603042 is 240306132.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (231603041) 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, 5434 + ... + 22197.

It is an arithmetic number, because the mean of its divisors is an integer number (15916032).

Almost surely, 2^231603042 is an apocalyptic number.

231603042 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

231603042 is an abundant number, since it is smaller than the sum of its proper divisors (277709982).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

231603042 is a wasteful number, since it uses less digits than its factorization.

231603042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27774.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 231603042 is about 15218.5098482079. The cubic root of 231603042 is about 614.1127108319.

Adding to 231603042 its reverse (240306132), we get a palindrome (471909174).

The spelling of 231603042 in words is "two hundred thirty-one million, six hundred three thousand, forty-two".