11303111121 has 16 divisors (see below), whose sum is σ = 15218903040. Its totient is φ = 7461614160.

The previous prime is 11303111101. The next prime is 11303111189. The reversal of 11303111121 is 12111130311.

It is not a de Polignac number, because 11303111121 - 2⁷ = 11303110993 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11303111121.

It is not an unprimeable number, because it can be changed into a prime (11303111101) 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, 150900 + ... + 213018.

It is an arithmetic number, because the mean of its divisors is an integer number (951181440).

Almost surely, 2^11303111121 is an apocalyptic number.

It is an amenable number.

11303111121 is a deficient number, since it is larger than the sum of its proper divisors (3915791919).

11303111121 is a wasteful number, since it uses less digits than its factorization.

11303111121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62716.

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

Adding to 11303111121 its reverse (12111130311), we get a palindrome (23414241432).

The spelling of 11303111121 in words is "eleven billion, three hundred three million, one hundred eleven thousand, one hundred twenty-one".