2311220230111 has 32 divisors (see below), whose sum is σ = 2754084630528. Its totient is φ = 1919512788480.

The previous prime is 2311220230087. The next prime is 2311220230201. The reversal of 2311220230111 is 1110320221132.

It is a cyclic number.

It is not a de Polignac number, because 2311220230111 - 2⁵ = 2311220230079 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 (2311220230411) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2140695 + ... + 3033976.

It is an arithmetic number, because the mean of its divisors is an integer number (86065144704).

Almost surely, 2^{2311220230111} is an apocalyptic number.

2311220230111 is a deficient number, since it is larger than the sum of its proper divisors (442864400417).

2311220230111 is a wasteful number, since it uses less digits than its factorization.

2311220230111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5174791.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 2311220230111 its reverse (1110320221132), we get a palindrome (3421540451243).

The spelling of 2311220230111 in words is "two trillion, three hundred eleven billion, two hundred twenty million, two hundred thirty thousand, one hundred eleven".