2111530432 has 28 divisors (see below), whose sum is σ = 4570985016. Its totient is φ = 959786240.

The previous prime is 2111530427. The next prime is 2111530471. The reversal of 2111530432 is 2340351112.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

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, 1498963 + ... + 1500370.

Almost surely, 2^2111530432 is an apocalyptic number.

2111530432 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2111530432 is an abundant number, since it is smaller than the sum of its proper divisors (2459454584).

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

2111530432 is a wasteful number, since it uses less digits than its factorization.

2111530432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2999356 (or 2999346 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 2111530432 is about 45951.3920572598. The cubic root of 2111530432 is about 1282.9186393773.

Adding to 2111530432 its reverse (2340351112), we get a palindrome (4451881544).

The spelling of 2111530432 in words is "two billion, one hundred eleven million, five hundred thirty thousand, four hundred thirty-two".