2121432032 has 12 divisors (see below), whose sum is σ = 4176569376. Its totient is φ = 1060716000.

The previous prime is 2121432031. The next prime is 2121432043. The reversal of 2121432032 is 2302341212.

It is a junction number, because it is equal to n+sod(n) for n = 2121431995 and 2121432013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2121432031) 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 as a sum of consecutive naturals, namely, 33147344 + ... + 33147407.

It is an arithmetic number, because the mean of its divisors is an integer number (348047448).

Almost surely, 2^2121432032 is an apocalyptic number.

It is an amenable number.

2121432032 is a deficient number, since it is larger than the sum of its proper divisors (2055137344).

2121432032 is an equidigital number, since it uses as much as digits as its factorization.

2121432032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66294761 (or 66294753 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 2121432032 is about 46059.0059814582. The cubic root of 2121432032 is about 1284.9208431812.

Adding to 2121432032 its reverse (2302341212), we get a palindrome (4423773244).

The spelling of 2121432032 in words is "two billion, one hundred twenty-one million, four hundred thirty-two thousand, thirty-two".