2100040443432 has 48 divisors (see below), whose sum is σ = 5689398148980. Its totient is φ = 699793344000.

The previous prime is 2100040443427. The next prime is 2100040443433. The reversal of 2100040443432 is 2343440400012.

It is a happy number.

2100040443432 is a `hidden beast` number, since 210 + 0 + 0 + 4 + 0 + 443 + 4 + 3 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1415638317636 + 684402125796 = 1189806^2 + 827286^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2100040443396 and 2100040443405.

It is not an unprimeable number, because it can be changed into a prime (2100040443433) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4355569 + ... + 4813632.

Almost surely, 2^{2100040443432} is an apocalyptic number.

It is an amenable number.

2100040443432 is an abundant number, since it is smaller than the sum of its proper divisors (3589357705548).

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

2100040443432 is a wasteful number, since it uses less digits than its factorization.

2100040443432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9172394 (or 9172387 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

Adding to 2100040443432 its reverse (2343440400012), we get a palindrome (4443480843444).

The spelling of 2100040443432 in words is "two trillion, one hundred billion, forty million, four hundred forty-three thousand, four hundred thirty-two".