2111020320 has 48 divisors (see below), whose sum is σ = 6649715520. Its totient is φ = 562938624.

The previous prime is 2111020277. The next prime is 2111020337. The reversal of 2111020320 is 230201112.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 2111020296 and 2111020305.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2198500 + ... + 2199459.

It is an arithmetic number, because the mean of its divisors is an integer number (138535740).

Almost surely, 2^2111020320 is an apocalyptic number.

2111020320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2111020320 is an abundant number, since it is smaller than the sum of its proper divisors (4538695200).

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

2111020320 is a wasteful number, since it uses less digits than its factorization.

2111020320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4397977 (or 4397969 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 2111020320 is about 45945.8411610888. The cubic root of 2111020320 is about 1282.8153201781.

Adding to 2111020320 its reverse (230201112), we get a palindrome (2341221432).

The spelling of 2111020320 in words is "two billion, one hundred eleven million, twenty thousand, three hundred twenty".