21333032330 has 8 divisors (see below), whose sum is σ = 38399458212. Its totient is φ = 8533212928.

The previous prime is 21333032327. The next prime is 21333032341. The reversal of 21333032330 is 3323033312.

It can be written as a sum of positive squares in 2 ways, for example, as 21143777281 + 189255049 = 145409^2 + 13757^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 21333032296 and 21333032305.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1066651607 + ... + 1066651626.

Almost surely, 2^21333032330 is an apocalyptic number.

21333032330 is a deficient number, since it is larger than the sum of its proper divisors (17066425882).

21333032330 is a wasteful number, since it uses less digits than its factorization.

21333032330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2133303240.

The product of its (nonzero) digits is 2916, while the sum is 23.

Adding to 21333032330 its reverse (3323033312), we get a palindrome (24656065642).

The spelling of 21333032330 in words is "twenty-one billion, three hundred thirty-three million, thirty-two thousand, three hundred thirty".