11211002291 has 8 divisors (see below), whose sum is σ = 11884911264. Its totient is φ = 10538697600.

The previous prime is 11211002287. The next prime is 11211002333. The reversal of 11211002291 is 19220011211.

11211002291 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11211002291 - 2² = 11211002287 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11211002251) 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 7 ways as a sum of consecutive naturals, for example, 386660 + ... + 414641.

It is an arithmetic number, because the mean of its divisors is an integer number (1485613908).

Almost surely, 2^11211002291 is an apocalyptic number.

11211002291 is a deficient number, since it is larger than the sum of its proper divisors (673908973).

11211002291 is an equidigital number, since it uses as much as digits as its factorization.

11211002291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 802141.

The product of its (nonzero) digits is 72, while the sum is 20.

The spelling of 11211002291 in words is "eleven billion, two hundred eleven million, two thousand, two hundred ninety-one".