11101211123 has 8 divisors (see below), whose sum is σ = 11768417280. Its totient is φ = 10435582080.

The previous prime is 11101211083. The next prime is 11101211129. The reversal of 11101211123 is 32111210111.

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 11101211123 - 2⁶ = 11101211059 is a prime.

It is a super-2 number, since 2×11101211123² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11101211098 and 11101211107.

It is not an unprimeable number, because it can be changed into a prime (11101211129) 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, 379763 + ... + 407948.

It is an arithmetic number, because the mean of its divisors is an integer number (1471052160).

Almost surely, 2^11101211123 is an apocalyptic number.

11101211123 is a deficient number, since it is larger than the sum of its proper divisors (667206157).

11101211123 is an equidigital number, since it uses as much as digits as its factorization.

11101211123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 788557.

The product of its (nonzero) digits is 12, while the sum is 14.

Adding to 11101211123 its reverse (32111210111), we get a palindrome (43212421234).

The spelling of 11101211123 in words is "eleven billion, one hundred one million, two hundred eleven thousand, one hundred twenty-three".