11101331121 has 16 divisors (see below), whose sum is σ = 14856611328. Its totient is φ = 7373520000.

The previous prime is 11101331053. The next prime is 11101331147. The reversal of 11101331121 is 12113310111.

It is not a de Polignac number, because 11101331121 - 2¹⁵ = 11101298353 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11101331121.

It is not an unprimeable number, because it can be changed into a prime (11101331221) 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, 955296 + ... + 966846.

It is an arithmetic number, because the mean of its divisors is an integer number (928538208).

Almost surely, 2^11101331121 is an apocalyptic number.

It is an amenable number.

11101331121 is a deficient number, since it is larger than the sum of its proper divisors (3755280207).

11101331121 is a wasteful number, since it uses less digits than its factorization.

11101331121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12712.

The product of its (nonzero) digits is 18, while the sum is 15.

Adding to 11101331121 its reverse (12113310111), we get a palindrome (23214641232).

The spelling of 11101331121 in words is "eleven billion, one hundred one million, three hundred thirty-one thousand, one hundred twenty-one".