21133012183 has 2 divisors, whose sum is σ = 21133012184. Its totient is φ = 21133012182.

The previous prime is 21133012177. The next prime is 21133012207. The reversal of 21133012183 is 38121033112.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21133012183 - 2⁵ = 21133012151 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21133012123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10566506091 + 10566506092.

It is an arithmetic number, because the mean of its divisors is an integer number (10566506092).

Almost surely, 2^21133012183 is an apocalyptic number.

21133012183 is a deficient number, since it is larger than the sum of its proper divisors (1).

21133012183 is an equidigital number, since it uses as much as digits as its factorization.

21133012183 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 25.

Adding to 21133012183 its reverse (38121033112), we get a palindrome (59254045295).

The spelling of 21133012183 in words is "twenty-one billion, one hundred thirty-three million, twelve thousand, one hundred eighty-three".