2021113432 has 32 divisors (see below), whose sum is σ = 4084491600. Its totient is φ = 932045184.

The previous prime is 2021113421. The next prime is 2021113439. The reversal of 2021113432 is 2343111202.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021113439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 128494 + ... + 143362.

Almost surely, 2^2021113432 is an apocalyptic number.

It is an amenable number.

2021113432 is an abundant number, since it is smaller than the sum of its proper divisors (2063378168).

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

2021113432 is a wasteful number, since it uses less digits than its factorization.

2021113432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16195 (or 16191 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 2021113432 is about 44956.7951704745. The cubic root of 2021113432 is about 1264.3390824388.

Adding to 2021113432 its reverse (2343111202), we get a palindrome (4364224634).

The spelling of 2021113432 in words is "two billion, twenty-one million, one hundred thirteen thousand, four hundred thirty-two".