21233011331113 has 4 divisors (see below), whose sum is σ = 21237846910848. Its totient is φ = 21228175751380.

The previous prime is 21233011331093. The next prime is 21233011331131. The reversal of 21233011331113 is 31113311033212.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 21233011331113 - 2¹³ = 21233011322921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21233011335113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2417783281 + ... + 2417792062.

It is an arithmetic number, because the mean of its divisors is an integer number (5309461727712).

Almost surely, 2^{21233011331113} is an apocalyptic number.

It is an amenable number.

21233011331113 is a deficient number, since it is larger than the sum of its proper divisors (4835579735).

21233011331113 is an equidigital number, since it uses as much as digits as its factorization.

21233011331113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4835579734.

The product of its (nonzero) digits is 972, while the sum is 25.

Adding to 21233011331113 its reverse (31113311033212), we get a palindrome (52346322364325).

The spelling of 21233011331113 in words is "twenty-one trillion, two hundred thirty-three billion, eleven million, three hundred thirty-one thousand, one hundred thirteen".