21102002330 has 8 divisors (see below), whose sum is σ = 37983604212. Its totient is φ = 8440800928.

The previous prime is 21102002323. The next prime is 21102002347. The reversal of 21102002330 is 3320020112.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 21098434009 + 3568321 = 145253^2 + 1889^2 .

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

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, 1055100107 + ... + 1055100126.

Almost surely, 2^21102002330 is an apocalyptic number.

21102002330 is a deficient number, since it is larger than the sum of its proper divisors (16881601882).

21102002330 is a wasteful number, since it uses less digits than its factorization.

21102002330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2110200240.

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 21102002330 its reverse (3320020112), we get a palindrome (24422022442).

The spelling of 21102002330 in words is "twenty-one billion, one hundred two million, two thousand, three hundred thirty".