220124311 has 4 divisors (see below), whose sum is σ = 240135624. Its totient is φ = 200113000.

The previous prime is 220124309. The next prime is 220124321. The reversal of 220124311 is 113421022.

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 220124311 - 2¹ = 220124309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220124321) 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, 10005640 + ... + 10005661.

It is an arithmetic number, because the mean of its divisors is an integer number (60033906).

Almost surely, 2^220124311 is an apocalyptic number.

220124311 is a deficient number, since it is larger than the sum of its proper divisors (20011313).

220124311 is a wasteful number, since it uses less digits than its factorization.

220124311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20011312.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 220124311 is about 14836.5869053499. The cubic root of 220124311 is about 603.7947556007.

Adding to 220124311 its reverse (113421022), we get a palindrome (333545333).

The spelling of 220124311 in words is "two hundred twenty million, one hundred twenty-four thousand, three hundred eleven".