21320133302 has 16 divisors (see below), whose sum is σ = 35004811632. Its totient is φ = 9678748320.

The previous prime is 21320133293. The next prime is 21320133311. The reversal of 21320133302 is 20333102312.

It is an interprime number because it is at equal distance from previous prime (21320133293) and next prime (21320133311).

It is a congruent number.

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, 6719768 + ... + 6722939.

It is an arithmetic number, because the mean of its divisors is an integer number (2187800727).

Almost surely, 2^21320133302 is an apocalyptic number.

21320133302 is a deficient number, since it is larger than the sum of its proper divisors (13684678330).

21320133302 is a wasteful number, since it uses less digits than its factorization.

21320133302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13442783.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 21320133302 its reverse (20333102312), we get a palindrome (41653235614).

The spelling of 21320133302 in words is "twenty-one billion, three hundred twenty million, one hundred thirty-three thousand, three hundred two".