231224042 has 12 divisors (see below), whose sum is σ = 403462530. Its totient is φ = 99095976.

The previous prime is 231223999. The next prime is 231224113. The reversal of 231224042 is 240422132.

231224042 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 219602761 + 11621281 = 14819^2 + 3409^2 .

It is a super-3 number, since 3×231224042³ (a number of 26 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1179617 + ... + 1179812.

Almost surely, 2^231224042 is an apocalyptic number.

231224042 is a deficient number, since it is larger than the sum of its proper divisors (172238488).

231224042 is a wasteful number, since it uses less digits than its factorization.

231224042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2359445 (or 2359438 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 231224042 is about 15206.0528080104. The cubic root of 231224042 is about 613.7775457016. Note that the first 3 decimals are identical.

Adding to 231224042 its reverse (240422132), we get a palindrome (471646174).

The spelling of 231224042 in words is "two hundred thirty-one million, two hundred twenty-four thousand, forty-two".