11211312986 has 16 divisors (see below), whose sum is σ = 17107135200. Its totient is φ = 5508991728.

The previous prime is 11211312979. The next prime is 11211312989. The reversal of 11211312986 is 68921311211.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (11211312989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 442325 + ... + 466983.

It is an arithmetic number, because the mean of its divisors is an integer number (1069195950).

Almost surely, 2^11211312986 is an apocalyptic number.

11211312986 is a deficient number, since it is larger than the sum of its proper divisors (5895822214).

11211312986 is a wasteful number, since it uses less digits than its factorization.

11211312986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28573.

The product of its digits is 5184, while the sum is 35.

The spelling of 11211312986 in words is "eleven billion, two hundred eleven million, three hundred twelve thousand, nine hundred eighty-six".