233420231 has 8 divisors (see below), whose sum is σ = 254911104. Its totient is φ = 211974520.

The previous prime is 233420219. The next prime is 233420249. The reversal of 233420231 is 132024332.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 233420231 - 2¹⁸ = 233158087 is a prime.

It is a super-2 number, since 2×233420231² = 108970008480186722, 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 (233420281) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20 + ... + 21606.

It is an arithmetic number, because the mean of its divisors is an integer number (31863888).

Almost surely, 2^233420231 is an apocalyptic number.

233420231 is a deficient number, since it is larger than the sum of its proper divisors (21490873).

233420231 is a wasteful number, since it uses less digits than its factorization.

233420231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22581.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 233420231 is about 15278.0964455655. The cubic root of 233420231 is about 615.7146657031.

Adding to 233420231 its reverse (132024332), we get a palindrome (365444563).

The spelling of 233420231 in words is "two hundred thirty-three million, four hundred twenty thousand, two hundred thirty-one".