21200311301233 has 16 divisors (see below), whose sum is σ = 22130271273600. Its totient is φ = 20271036755200.

The previous prime is 21200311301209. The next prime is 21200311301243. The reversal of 21200311301233 is 33210311300212.

It is a cyclic number.

It is not a de Polignac number, because 21200311301233 - 2¹⁷ = 21200311170161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21200311301243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1361692473 + ... + 1361708041.

It is an arithmetic number, because the mean of its divisors is an integer number (1383141954600).

Almost surely, 2^{21200311301233} is an apocalyptic number.

21200311301233 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

21200311301233 is a deficient number, since it is larger than the sum of its proper divisors (929959972367).

21200311301233 is a wasteful number, since it uses less digits than its factorization.

21200311301233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33752.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 21200311301233 its reverse (33210311300212), we get a palindrome (54410622601445).

The spelling of 21200311301233 in words is "twenty-one trillion, two hundred billion, three hundred eleven million, three hundred one thousand, two hundred thirty-three".