11021211983 has 2 divisors, whose sum is σ = 11021211984. Its totient is φ = 11021211982.

The previous prime is 11021211973. The next prime is 11021212049. The reversal of 11021211983 is 38911212011.

It is a happy number.

11021211983 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11021211983 - 2¹⁴ = 11021195599 is a prime.

It is a super-2 number, since 2×11021211983² (a number of 21 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11021211913) 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 as a sum of consecutive naturals, namely, 5510605991 + 5510605992.

It is an arithmetic number, because the mean of its divisors is an integer number (5510605992).

Almost surely, 2^11021211983 is an apocalyptic number.

11021211983 is a deficient number, since it is larger than the sum of its proper divisors (1).

11021211983 is an equidigital number, since it uses as much as digits as its factorization.

11021211983 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 29.

Adding to 11021211983 its reverse (38911212011), we get a palindrome (49932423994).

The spelling of 11021211983 in words is "eleven billion, twenty-one million, two hundred eleven thousand, nine hundred eighty-three".