220331313 has 16 divisors (see below), whose sum is σ = 326645760. Its totient is φ = 146784528.

The previous prime is 220331281. The next prime is 220331323. The reversal of 220331313 is 313133022.

220331313 is a `hidden beast` number, since 2 + 20 + 331 + 313 = 666.

It is not a de Polignac number, because 220331313 - 2⁵ = 220331281 is a prime.

It is not an unprimeable number, because it can be changed into a prime (220331323) 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, 71031 + ... + 74067.

It is an arithmetic number, because the mean of its divisors is an integer number (20415360).

Almost surely, 2^220331313 is an apocalyptic number.

It is an amenable number.

220331313 is a deficient number, since it is larger than the sum of its proper divisors (106314447).

220331313 is a wasteful number, since it uses less digits than its factorization.

220331313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5733 (or 5727 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

The square root of 220331313 is about 14843.5613314326. The cubic root of 220331313 is about 603.9839631796.

Adding to 220331313 its reverse (313133022), we get a palindrome (533464335).

The spelling of 220331313 in words is "two hundred twenty million, three hundred thirty-one thousand, three hundred thirteen".