21303002 has 8 divisors (see below), whose sum is σ = 36519456. Its totient is φ = 9129852.

The previous prime is 21302993. The next prime is 21303011. The reversal of 21303002 is 20030312.

It is an interprime number because it is at equal distance from previous prime (21302993) and next prime (21303011).

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, 760808 + ... + 760835.

It is an arithmetic number, because the mean of its divisors is an integer number (4564932).

Almost surely, 2^21303002 is an apocalyptic number.

21303002 is a deficient number, since it is larger than the sum of its proper divisors (15216454).

21303002 is a wasteful number, since it uses less digits than its factorization.

21303002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1521652.

The product of its (nonzero) digits is 36, while the sum is 11.

The square root of 21303002 is about 4615.5175224453. The cubic root of 21303002 is about 277.2130063229.

Adding to 21303002 its reverse (20030312), we get a palindrome (41333314).

The spelling of 21303002 in words is "twenty-one million, three hundred three thousand, two".