331232223 has 16 divisors (see below), whose sum is σ = 526680576. Its totient is φ = 181045920.

The previous prime is 331232203. The next prime is 331232249. The reversal of 331232223 is 322232133.

It is not a de Polignac number, because 331232223 - 2⁵ = 331232191 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 331232223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331232203) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 342408 + ... + 343373.

It is an arithmetic number, because the mean of its divisors is an integer number (32917536).

Almost surely, 2^331232223 is an apocalyptic number.

331232223 is a deficient number, since it is larger than the sum of its proper divisors (195448353).

331232223 is a wasteful number, since it uses less digits than its factorization.

331232223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 685814.

The product of its digits is 1296, while the sum is 21.

The square root of 331232223 is about 18199.7863448998. The cubic root of 331232223 is about 691.9013740906.

Adding to 331232223 its reverse (322232133), we get a palindrome (653464356).

The spelling of 331232223 in words is "three hundred thirty-one million, two hundred thirty-two thousand, two hundred twenty-three".