11121755863 has 8 divisors (see below), whose sum is σ = 11150438400. Its totient is φ = 11093097048.

The previous prime is 11121755857. The next prime is 11121755923. The reversal of 11121755863 is 36855712111.

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 11121755863 - 2¹³ = 11121747671 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 (11121755803) 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, 1271218 + ... + 1279936.

It is an arithmetic number, because the mean of its divisors is an integer number (1393804800).

Almost surely, 2^11121755863 is an apocalyptic number.

11121755863 is a deficient number, since it is larger than the sum of its proper divisors (28682537).

11121755863 is an equidigital number, since it uses as much as digits as its factorization.

11121755863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11861.

The product of its digits is 50400, while the sum is 40.

The spelling of 11121755863 in words is "eleven billion, one hundred twenty-one million, seven hundred fifty-five thousand, eight hundred sixty-three".