233224220431 has 4 divisors (see below), whose sum is σ = 243364403952. Its totient is φ = 223084036912.

The previous prime is 233224220347. The next prime is 233224220459. The reversal of 233224220431 is 134022422332.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 233224220431 - 2⁷ = 233224220303 is a prime.

It is a super-2 number, since 2×233224220431² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 233224220431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (233224229431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5070091726 + ... + 5070091771.

It is an arithmetic number, because the mean of its divisors is an integer number (60841100988).

Almost surely, 2^233224220431 is an apocalyptic number.

233224220431 is a deficient number, since it is larger than the sum of its proper divisors (10140183521).

233224220431 is a wasteful number, since it uses less digits than its factorization.

233224220431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10140183520.

The product of its (nonzero) digits is 13824, while the sum is 28.

Adding to 233224220431 its reverse (134022422332), we get a palindrome (367246642763).

The spelling of 233224220431 in words is "two hundred thirty-three billion, two hundred twenty-four million, two hundred twenty thousand, four hundred thirty-one".