11001101121 has 24 divisors (see below), whose sum is σ = 16238179776. Its totient is φ = 7175308320.

The previous prime is 11001101071. The next prime is 11001101131. The reversal of 11001101121 is 12110110011.

It is not a de Polignac number, because 11001101121 - 2⁷ = 11001100993 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (11001101131) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5451 + ... + 148431.

It is an arithmetic number, because the mean of its divisors is an integer number (676590824).

Almost surely, 2^11001101121 is an apocalyptic number.

It is an amenable number.

11001101121 is a deficient number, since it is larger than the sum of its proper divisors (5237078655).

11001101121 is a wasteful number, since it uses less digits than its factorization.

11001101121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143173 (or 143170 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 9.

Adding to 11001101121 its reverse (12110110011), we get a palindrome (23111211132).

The spelling of 11001101121 in words is "eleven billion, one million, one hundred one thousand, one hundred twenty-one".