11101001121 has 12 divisors (see below), whose sum is σ = 18325462272. Its totient is φ = 6343429176.

The previous prime is 11101001077. The next prime is 11101001137. The reversal of 11101001121 is 12110010111.

It is not a de Polignac number, because 11101001121 - 2⁶ = 11101001057 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 (11101001621) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 88103121 + ... + 88103246.

It is an arithmetic number, because the mean of its divisors is an integer number (1527121856).

Almost surely, 2^11101001121 is an apocalyptic number.

It is an amenable number.

11101001121 is a deficient number, since it is larger than the sum of its proper divisors (7224461151).

11101001121 is a wasteful number, since it uses less digits than its factorization.

11101001121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176206380 (or 176206377 counting only the distinct ones).

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

Adding to 11101001121 its reverse (12110010111), we get a palindrome (23211011232).

The spelling of 11101001121 in words is "eleven billion, one hundred one million, one thousand, one hundred twenty-one".