11087213311 has 4 divisors (see below), whose sum is σ = 11114862624. Its totient is φ = 11059564000.

The previous prime is 11087213303. The next prime is 11087213321. The reversal of 11087213311 is 11331278011.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11087213311 - 2³ = 11087213303 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11087213311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11087213321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13824055 + ... + 13824856.

It is an arithmetic number, because the mean of its divisors is an integer number (2778715656).

Almost surely, 2^11087213311 is an apocalyptic number.

11087213311 is a deficient number, since it is larger than the sum of its proper divisors (27649313).

11087213311 is an equidigital number, since it uses as much as digits as its factorization.

11087213311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27649312.

The product of its (nonzero) digits is 1008, while the sum is 28.

The spelling of 11087213311 in words is "eleven billion, eighty-seven million, two hundred thirteen thousand, three hundred eleven".