21112231883 has 2 divisors, whose sum is σ = 21112231884. Its totient is φ = 21112231882.

The previous prime is 21112231859. The next prime is 21112231897. The reversal of 21112231883 is 38813221112.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21112231883 - 2²⁶ = 21045123019 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (21112231823) 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 as a sum of consecutive naturals, namely, 10556115941 + 10556115942.

It is an arithmetic number, because the mean of its divisors is an integer number (10556115942).

Almost surely, 2^21112231883 is an apocalyptic number.

21112231883 is a deficient number, since it is larger than the sum of its proper divisors (1).

21112231883 is an equidigital number, since it uses as much as digits as its factorization.

21112231883 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4608, while the sum is 32.

Adding to 21112231883 its reverse (38813221112), we get a palindrome (59925452995).

The spelling of 21112231883 in words is "twenty-one billion, one hundred twelve million, two hundred thirty-one thousand, eight hundred eighty-three".