21032100332 has 12 divisors (see below), whose sum is σ = 36829233840. Its totient is φ = 10509462096.

The previous prime is 21032100329. The next prime is 21032100373. The reversal of 21032100332 is 23300123012.

It is a self number, because there is not a number n which added to its sum of digits gives 21032100332.

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, 1639832 + ... + 1652607.

It is an arithmetic number, because the mean of its divisors is an integer number (3069102820).

Almost surely, 2^21032100332 is an apocalyptic number.

It is an amenable number.

21032100332 is a deficient number, since it is larger than the sum of its proper divisors (15797133508).

21032100332 is a wasteful number, since it uses less digits than its factorization.

21032100332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3294040 (or 3294038 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 21032100332 its reverse (23300123012), we get a palindrome (44332223344).

The spelling of 21032100332 in words is "twenty-one billion, thirty-two million, one hundred thousand, three hundred thirty-two".