11211111010011 has 8 divisors (see below), whose sum is σ = 16307070560064. Its totient is φ = 6794612733320.

The previous prime is 11211111010007. The next prime is 11211111010031. The reversal of 11211111010011 is 11001011111211.

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 11211111010011 - 2² = 11211111010007 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11211111010031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 169865318301 + ... + 169865318366.

It is an arithmetic number, because the mean of its divisors is an integer number (2038383820008).

Almost surely, 2^{11211111010011} is an apocalyptic number.

11211111010011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11211111010011 is a deficient number, since it is larger than the sum of its proper divisors (5095959550053).

11211111010011 is a wasteful number, since it uses less digits than its factorization.

11211111010011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339730636681.

The product of its (nonzero) digits is 2, while the sum is 12.

Adding to 11211111010011 its reverse (11001011111211), we get a palindrome (22212122121222).

The spelling of 11211111010011 in words is "eleven trillion, two hundred eleven billion, one hundred eleven million, ten thousand, eleven".