2311140220 has 24 divisors (see below), whose sum is σ = 4854470544. Its totient is φ = 924251136.

The previous prime is 2311140203. The next prime is 2311140263. The reversal of 2311140220 is 220411132.

It is a junction number, because it is equal to n+sod(n) for n = 2311140194 and 2311140203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 106972 + ... + 126748.

It is an arithmetic number, because the mean of its divisors is an integer number (202269606).

Almost surely, 2^2311140220 is an apocalyptic number.

2311140220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2311140220 is an abundant number, since it is smaller than the sum of its proper divisors (2543330324).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2311140220 is a wasteful number, since it uses less digits than its factorization.

2311140220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25629 (or 25627 counting only the distinct ones).

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

The square root of 2311140220 is about 48074.3197559778. The cubic root of 2311140220 is about 1322.1338725840.

Adding to 2311140220 its reverse (220411132), we get a palindrome (2531551352).

The spelling of 2311140220 in words is "two billion, three hundred eleven million, one hundred forty thousand, two hundred twenty".