11001121201123 has 4 divisors (see below), whose sum is σ = 11001129249888. Its totient is φ = 11001113152360.

The previous prime is 11001121201121. The next prime is 11001121201157. The reversal of 11001121201123 is 32110212110011.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 11001121201123 - 2¹ = 11001121201121 is a prime.

It is a super-2 number, since 2×11001121201123² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11001121201097 and 11001121201106.

It is not an unprimeable number, because it can be changed into a prime (11001121201121) 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, 1406536 + ... + 4896997.

It is an arithmetic number, because the mean of its divisors is an integer number (2750282312472).

Almost surely, 2^{11001121201123} is an apocalyptic number.

11001121201123 is a deficient number, since it is larger than the sum of its proper divisors (8048765).

11001121201123 is an equidigital number, since it uses as much as digits as its factorization.

11001121201123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8048764.

The product of its (nonzero) digits is 24, while the sum is 16.

Adding to 11001121201123 its reverse (32110212110011), we get a palindrome (43111333311134).

The spelling of 11001121201123 in words is "eleven trillion, one billion, one hundred twenty-one million, two hundred one thousand, one hundred twenty-three".