11001121211023 has 16 divisors (see below), whose sum is σ = 11723170310784. Its totient is φ = 10287405273600.

The previous prime is 11001121210993. The next prime is 11001121211027. The reversal of 11001121211023 is 32011212110011.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11001121211023 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11001121210988 and 11001121211006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11001121211027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45698673 + ... + 45938773.

It is an arithmetic number, because the mean of its divisors is an integer number (732698144424).

Almost surely, 2^{11001121211023} is an apocalyptic number.

11001121211023 is a deficient number, since it is larger than the sum of its proper divisors (722049099761).

11001121211023 is a wasteful number, since it uses less digits than its factorization.

11001121211023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257442.

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

Adding to 11001121211023 its reverse (32011212110011), we get a palindrome (43012333321034).

The spelling of 11001121211023 in words is "eleven trillion, one billion, one hundred twenty-one million, two hundred eleven thousand, twenty-three".