21303003332 has 48 divisors (see below), whose sum is σ = 40804848000. Its totient is φ = 9672410880.

The previous prime is 21303003317. The next prime is 21303003347. The reversal of 21303003332 is 23330030312.

It is an interprime number because it is at equal distance from previous prime (21303003317) and next prime (21303003347).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 909407 + ... + 932537.

It is an arithmetic number, because the mean of its divisors is an integer number (850101000).

Almost surely, 2^21303003332 is an apocalyptic number.

It is an amenable number.

21303003332 is a deficient number, since it is larger than the sum of its proper divisors (19501844668).

21303003332 is a wasteful number, since it uses less digits than its factorization.

21303003332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23436 (or 23434 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 20.

Adding to 21303003332 its reverse (23330030312), we get a palindrome (44633033644).

The spelling of 21303003332 in words is "twenty-one billion, three hundred three million, three thousand, three hundred thirty-two".