220134311 has 4 divisors (see below), whose sum is σ = 229705392. Its totient is φ = 210563232.

The previous prime is 220134221. The next prime is 220134319. The reversal of 220134311 is 113431022.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-220134311 is a prime.

It is a super-2 number, since 2×220134311² = 96918229758889442, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 220134311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220134319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4785506 + ... + 4785551.

It is an arithmetic number, because the mean of its divisors is an integer number (57426348).

Almost surely, 2^220134311 is an apocalyptic number.

220134311 is a deficient number, since it is larger than the sum of its proper divisors (9571081).

220134311 is an equidigital number, since it uses as much as digits as its factorization.

220134311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9571080.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 220134311 is about 14836.9239062550. The cubic root of 220134311 is about 603.8038987012.

Adding to 220134311 its reverse (113431022), we get a palindrome (333565333).

The spelling of 220134311 in words is "two hundred twenty million, one hundred thirty-four thousand, three hundred eleven".