2111423120 has 40 divisors (see below), whose sum is σ = 5197830264. Its totient is φ = 794888192.

The previous prime is 2111423087. The next prime is 2111423123. The reversal of 2111423120 is 213241112.

It can be written as a sum of positive squares in 4 ways, for example, as 1215498496 + 895924624 = 34864^2 + 29932^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (17).

It is not an unprimeable number, because it can be changed into a prime (2111423123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 774899 + ... + 777618.

Almost surely, 2^2111423120 is an apocalyptic number.

2111423120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2111423120 is an abundant number, since it is smaller than the sum of its proper divisors (3086407144).

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

2111423120 is a wasteful number, since it uses less digits than its factorization.

2111423120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1552547 (or 1552541 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 2111423120 is about 45950.2243737721. The cubic root of 2111423120 is about 1282.8969055525.

Adding to 2111423120 its reverse (213241112), we get a palindrome (2324664232).

The spelling of 2111423120 in words is "two billion, one hundred eleven million, four hundred twenty-three thousand, one hundred twenty".