11211002091 has 12 divisors (see below), whose sum is σ = 16752072480. Its totient is φ = 7216277040.

The previous prime is 11211002081. The next prime is 11211002093. The reversal of 11211002091 is 19020011211.

It is a happy number.

11211002091 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11211002091 - 2²³ = 11202613483 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11211002093) 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 in 11 ways as a sum of consecutive naturals, for example, 21476755 + ... + 21477276.

It is an arithmetic number, because the mean of its divisors is an integer number (1396006040).

Almost surely, 2^11211002091 is an apocalyptic number.

11211002091 is a deficient number, since it is larger than the sum of its proper divisors (5541070389).

11211002091 is a wasteful number, since it uses less digits than its factorization.

11211002091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42954066 (or 42954063 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 18.

The spelling of 11211002091 in words is "eleven billion, two hundred eleven million, two thousand, ninety-one".