11211033109 has 2 divisors, whose sum is σ = 11211033110. Its totient is φ = 11211033108.

The previous prime is 11211033103. The next prime is 11211033137. The reversal of 11211033109 is 90133011211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10191508209 + 1019524900 = 100953^2 + 31930^2 .

It is a cyclic number.

It is not a de Polignac number, because 11211033109 - 2³ = 11211033101 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11211033109.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11211033101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5605516554 + 5605516555.

It is an arithmetic number, because the mean of its divisors is an integer number (5605516555).

Almost surely, 2^11211033109 is an apocalyptic number.

It is an amenable number.

11211033109 is a deficient number, since it is larger than the sum of its proper divisors (1).

11211033109 is an equidigital number, since it uses as much as digits as its factorization.

11211033109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 162, while the sum is 22.

The spelling of 11211033109 in words is "eleven billion, two hundred eleven million, thirty-three thousand, one hundred nine".