21303023422311 has 64 divisors (see below), whose sum is σ = 33335286476800. Its totient is φ = 13408307133408.

The previous prime is 21303023422147. The next prime is 21303023422319. The reversal of 21303023422311 is 11322432030312.

21303023422311 is a `hidden beast` number, since 2 + 1 + 3 + 0 + 3 + 0 + 2 + 342 + 2 + 311 = 666.

It is not a de Polignac number, because 21303023422311 - 2¹⁷ = 21303023291239 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21303023422319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1361816856 + ... + 1361832498.

It is an arithmetic number, because the mean of its divisors is an integer number (520863851200).

Almost surely, 2^{21303023422311} is an apocalyptic number.

21303023422311 is a deficient number, since it is larger than the sum of its proper divisors (12032263054489).

21303023422311 is a wasteful number, since it uses less digits than its factorization.

21303023422311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24625 (or 24619 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

Adding to 21303023422311 its reverse (11322432030312), we get a palindrome (32625455452623).

The spelling of 21303023422311 in words is "twenty-one trillion, three hundred three billion, twenty-three million, four hundred twenty-two thousand, three hundred eleven".