42303231 has 6 divisors (see below), whose sum is σ = 61104680. Its totient is φ = 28202148.

The previous prime is 42303181. The next prime is 42303241. The reversal of 42303231 is 13230324.

It is not a de Polignac number, because 42303231 - 2¹⁰ = 42302207 is a prime.

It is a super-2 number, since 2×42303231² = 3579126706078722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42303241) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2350171 + ... + 2350188.

Almost surely, 2^42303231 is an apocalyptic number.

42303231 is a deficient number, since it is larger than the sum of its proper divisors (18801449).

42303231 is a wasteful number, since it uses less digits than its factorization.

42303231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4700365 (or 4700362 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 42303231 is about 6504.0934033884. The cubic root of 42303231 is about 348.4371982315.

Adding to 42303231 its reverse (13230324), we get a palindrome (55533555).

It can be divided in two parts, 4230323 and 1, that added together give a palindrome (4230324).

The spelling of 42303231 in words is "forty-two million, three hundred three thousand, two hundred thirty-one".