231622233 has 24 divisors (see below), whose sum is σ = 318578400. Its totient is φ = 149662656.

The previous prime is 231622231. The next prime is 231622273. The reversal of 231622233 is 332226132.

It is not a de Polignac number, because 231622233 - 2¹ = 231622231 is a prime.

It is a super-3 number, since 3×231622233³ (a number of 26 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (231622231) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1666278 + ... + 1666416.

It is an arithmetic number, because the mean of its divisors is an integer number (13274100).

Almost surely, 2^231622233 is an apocalyptic number.

It is an amenable number.

231622233 is a deficient number, since it is larger than the sum of its proper divisors (86956167).

231622233 is an equidigital number, since it uses as much as digits as its factorization.

231622233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 389 (or 310 counting only the distinct ones).

The product of its digits is 2592, while the sum is 24.

The square root of 231622233 is about 15219.1403502300. The cubic root of 231622233 is about 614.1296724852.

Adding to 231622233 its reverse (332226132), we get a palindrome (563848365).

The spelling of 231622233 in words is "two hundred thirty-one million, six hundred twenty-two thousand, two hundred thirty-three".