220032313 has 4 divisors (see below), whose sum is σ = 220655988. Its totient is φ = 219408640.

The previous prime is 220032311. The next prime is 220032347. The reversal of 220032313 is 313230022.

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

It can be written as a sum of positive squares in 2 ways, for example, as 40793769 + 179238544 = 6387^2 + 13388^2 .

It is a cyclic number.

It is not a de Polignac number, because 220032313 - 2¹ = 220032311 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220032311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 311308 + ... + 312013.

It is an arithmetic number, because the mean of its divisors is an integer number (55163997).

Almost surely, 2^220032313 is an apocalyptic number.

It is an amenable number.

220032313 is a deficient number, since it is larger than the sum of its proper divisors (623675).

220032313 is an equidigital number, since it uses as much as digits as its factorization.

220032313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 623674.

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 220032313 is about 14833.4862052048. The cubic root of 220032313 is about 603.7106279094.

Adding to 220032313 its reverse (313230022), we get a palindrome (533262335).

The spelling of 220032313 in words is "two hundred twenty million, thirty-two thousand, three hundred thirteen".