2111304120 has 64 divisors (see below), whose sum is σ = 6706501920. Its totient is φ = 529895424.

The previous prime is 2111304119. The next prime is 2111304121. The reversal of 2111304120 is 214031112.

It is an interprime number because it is at equal distance from previous prime (2111304119) and next prime (2111304121).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 2111304120.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2111304121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 515437 + ... + 519516.

Almost surely, 2^2111304120 is an apocalyptic number.

2111304120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2111304120 is an abundant number, since it is smaller than the sum of its proper divisors (4595197800).

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

2111304120 is a wasteful number, since it uses less digits than its factorization.

2111304120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1034984 (or 1034980 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 2111304120 is about 45948.9294761042. The cubic root of 2111304120 is about 1282.8728037041.

Adding to 2111304120 its reverse (214031112), we get a palindrome (2325335232).

The spelling of 2111304120 in words is "two billion, one hundred eleven million, three hundred four thousand, one hundred twenty".