11121109999 has 8 divisors (see below), whose sum is σ = 11171160000. Its totient is φ = 11071089792.

The previous prime is 11121109981. The next prime is 11121110003. The reversal of 11121109999 is 99990112111.

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 11121109999 - 2⁷ = 11121109871 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11121109199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1106107 + ... + 1116115.

It is an arithmetic number, because the mean of its divisors is an integer number (1396395000).

Almost surely, 2^11121109999 is an apocalyptic number.

11121109999 is a deficient number, since it is larger than the sum of its proper divisors (50050001).

11121109999 is a wasteful number, since it uses less digits than its factorization.

11121109999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14897.

The product of its (nonzero) digits is 13122, while the sum is 43.

It can be divided in two parts, 1112 and 1109999, that added together give a palindrome (1111111).

The spelling of 11121109999 in words is "eleven billion, one hundred twenty-one million, one hundred nine thousand, nine hundred ninety-nine".