21303003202 has 8 divisors (see below), whose sum is σ = 34412543676. Its totient is φ = 9832155312.

The previous prime is 21303003199. The next prime is 21303003217. The reversal of 21303003202 is 20230030312.

It can be written as a sum of positive squares in 2 ways, for example, as 16391936961 + 4911066241 = 128031^2 + 70079^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 409673113 + ... + 409673164.

Almost surely, 2^21303003202 is an apocalyptic number.

21303003202 is a deficient number, since it is larger than the sum of its proper divisors (13109540474).

21303003202 is a wasteful number, since it uses less digits than its factorization.

21303003202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 819346292.

The product of its (nonzero) digits is 216, while the sum is 16.

Adding to 21303003202 its reverse (20230030312), we get a palindrome (41533033514).

The spelling of 21303003202 in words is "twenty-one billion, three hundred three million, three thousand, two hundred two".