220031343 has 64 divisors (see below), whose sum is σ = 398131200. Its totient is φ = 117300960.

The previous prime is 220031309. The next prime is 220031359. The reversal of 220031343 is 343130022.

It is not a de Polignac number, because 220031343 - 2¹⁷ = 219900271 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220031303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 254530 + ... + 255392.

It is an arithmetic number, because the mean of its divisors is an integer number (6220800).

Almost surely, 2^220031343 is an apocalyptic number.

220031343 is a deficient number, since it is larger than the sum of its proper divisors (178099857).

220031343 is a wasteful number, since it uses less digits than its factorization.

220031343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 969 (or 963 counting only the distinct ones).

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

The square root of 220031343 is about 14833.4535088765. The cubic root of 220031343 is about 603.7097407668.

Adding to 220031343 its reverse (343130022), we get a palindrome (563161365).

The spelling of 220031343 in words is "two hundred twenty million, thirty-one thousand, three hundred forty-three".