21032030332 has 24 divisors (see below), whose sum is σ = 36983603664. Its totient is φ = 10465325952.

The previous prime is 21032030303. The next prime is 21032030339. The reversal of 21032030332 is 23303023012.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21032030339) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4044358 + ... + 4049554.

It is an arithmetic number, because the mean of its divisors is an integer number (1540983486).

Almost surely, 2^21032030332 is an apocalyptic number.

It is an amenable number.

21032030332 is a deficient number, since it is larger than the sum of its proper divisors (15951573332).

21032030332 is a wasteful number, since it uses less digits than its factorization.

21032030332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9885 (or 9883 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 19.

Adding to 21032030332 its reverse (23303023012), we get a palindrome (44335053344).

The spelling of 21032030332 in words is "twenty-one billion, thirty-two million, thirty thousand, three hundred thirty-two".