2111152320 has 336 divisors, whose sum is σ = 7838419680. Its totient is φ = 519782400.

The previous prime is 2111152289. The next prime is 2111152331. The reversal of 2111152320 is 232511112.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 2111152293 and 2111152302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2243050 + ... + 2243990.

It is an arithmetic number, because the mean of its divisors is an integer number (23328630).

Almost surely, 2^2111152320 is an apocalyptic number.

2111152320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2111152320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3919209840).

2111152320 is an abundant number, since it is smaller than the sum of its proper divisors (5727267360).

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

2111152320 is a wasteful number, since it uses less digits than its factorization.

2111152320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1024 (or 1011 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 2111152320 is about 45947.2776124984. The cubic root of 2111152320 is about 1282.8420573426.

Adding to 2111152320 its reverse (232511112), we get a palindrome (2343663432).

The spelling of 2111152320 in words is "two billion, one hundred eleven million, one hundred fifty-two thousand, three hundred twenty".