21303021010330 has 16 divisors (see below), whose sum is σ = 38347921126944. Its totient is φ = 8520656557840.

The previous prime is 21303021010321. The next prime is 21303021010351. The reversal of 21303021010330 is 3301012030312.

It is a super-2 number, since 2×21303021010330² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21303021010298 and 21303021010307.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68818636 + ... + 69127495.

It is an arithmetic number, because the mean of its divisors is an integer number (2396745070434).

Almost surely, 2^{21303021010330} is an apocalyptic number.

21303021010330 is a deficient number, since it is larger than the sum of its proper divisors (17044900116614).

21303021010330 is a wasteful number, since it uses less digits than its factorization.

21303021010330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137961581.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 21303021010330 its reverse (3301012030312), we get a palindrome (24604033040642).

The spelling of 21303021010330 in words is "twenty-one trillion, three hundred three billion, twenty-one million, ten thousand, three hundred thirty".