2111430220 has 24 divisors (see below), whose sum is σ = 4435203024. Its totient is φ = 844343616.

The previous prime is 2111430187. The next prime is 2111430239. The reversal of 2111430220 is 220341112.

It is a junction number, because it is equal to n+sod(n) for n = 2111430194 and 2111430203.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75162 + ... + 99358.

It is an arithmetic number, because the mean of its divisors is an integer number (184800126).

Almost surely, 2^2111430220 is an apocalyptic number.

2111430220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2111430220 is an abundant number, since it is smaller than the sum of its proper divisors (2323772804).

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

2111430220 is a wasteful number, since it uses less digits than its factorization.

2111430220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28569 (or 28567 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 2111430220 is about 45950.3016312189. The cubic root of 2111430220 is about 1282.8983435333.

Adding to 2111430220 its reverse (220341112), we get a palindrome (2331771332).

The spelling of 2111430220 in words is "two billion, one hundred eleven million, four hundred thirty thousand, two hundred twenty".