11211530269 has 2 divisors, whose sum is σ = 11211530270. Its totient is φ = 11211530268.

The previous prime is 11211530261. The next prime is 11211530293. The reversal of 11211530269 is 96203511211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5831307769 + 5380222500 = 76363^2 + 73350^2 .

It is a cyclic number.

It is not a de Polignac number, because 11211530269 - 2³ = 11211530261 is a prime.

It is a super-2 number, since 2×11211530269² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11211530269.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11211530261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5605765134 + 5605765135.

It is an arithmetic number, because the mean of its divisors is an integer number (5605765135).

Almost surely, 2^11211530269 is an apocalyptic number.

It is an amenable number.

11211530269 is a deficient number, since it is larger than the sum of its proper divisors (1).

11211530269 is an equidigital number, since it uses as much as digits as its factorization.

11211530269 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3240, while the sum is 31.

The spelling of 11211530269 in words is "eleven billion, two hundred eleven million, five hundred thirty thousand, two hundred sixty-nine".