220431319 has 4 divisors (see below), whose sum is σ = 220683544. Its totient is φ = 220179096.

The previous prime is 220431313. The next prime is 220431329. The reversal of 220431319 is 913134022.

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 220431319 - 2¹¹ = 220429271 is a prime.

It is a super-2 number, since 2×220431319² = 97179932792159522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 220431293 and 220431302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220431313) 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, 124797 + ... + 126550.

It is an arithmetic number, because the mean of its divisors is an integer number (55170886).

Almost surely, 2^220431319 is an apocalyptic number.

220431319 is a deficient number, since it is larger than the sum of its proper divisors (252225).

220431319 is an equidigital number, since it uses as much as digits as its factorization.

220431319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252224.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 220431319 is about 14846.9296152437. The cubic root of 220431319 is about 604.0753299537.

The spelling of 220431319 in words is "two hundred twenty million, four hundred thirty-one thousand, three hundred nineteen".