2111216304 has 20 divisors (see below), whose sum is σ = 5453975576. Its totient is φ = 703738752.

The previous prime is 2111216291. The next prime is 2111216323. The reversal of 2111216304 is 4036121112.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21991789 + ... + 21991884.

Almost surely, 2^2111216304 is an apocalyptic number.

2111216304 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2111216304 is an abundant number, since it is smaller than the sum of its proper divisors (3342759272).

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

2111216304 is a wasteful number, since it uses less digits than its factorization.

2111216304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43983684 (or 43983678 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 2111216304 is about 45947.9738835131. The cubic root of 2111216304 is about 1282.8550171744.

Adding to 2111216304 its reverse (4036121112), we get a palindrome (6147337416).

The spelling of 2111216304 in words is "two billion, one hundred eleven million, two hundred sixteen thousand, three hundred four".