2311110020 has 12 divisors (see below), whose sum is σ = 4853331084. Its totient is φ = 924444000.

The previous prime is 2311110019. The next prime is 2311110023. The reversal of 2311110020 is 200111132.

It can be written as a sum of positive squares in 2 ways, for example, as 381967936 + 1929142084 = 19544^2 + 43922^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2311109983 and 2311110010.

It is not an unprimeable number, because it can be changed into a prime (2311110023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57777731 + ... + 57777770.

It is an arithmetic number, because the mean of its divisors is an integer number (404444257).

Almost surely, 2^2311110020 is an apocalyptic number.

2311110020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2311110020 is an abundant number, since it is smaller than the sum of its proper divisors (2542221064).

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

2311110020 is a wasteful number, since it uses less digits than its factorization.

2311110020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115555510 (or 115555508 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 2311110020 is about 48074.0056579437. The cubic root of 2311110020 is about 1322.1281137214.

Adding to 2311110020 its reverse (200111132), we get a palindrome (2511221152).

The spelling of 2311110020 in words is "two billion, three hundred eleven million, one hundred ten thousand, twenty".