11131011121 has 8 divisors (see below), whose sum is σ = 11163559680. Its totient is φ = 11098491888.

The previous prime is 11131011113. The next prime is 11131011179. The reversal of 11131011121 is 12111013111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11131011121 - 2³ = 11131011113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11131011821) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 918715 + ... + 930751.

It is an arithmetic number, because the mean of its divisors is an integer number (1395444960).

Almost surely, 2^11131011121 is an apocalyptic number.

It is an amenable number.

11131011121 is a deficient number, since it is larger than the sum of its proper divisors (32548559).

11131011121 is a wasteful number, since it uses less digits than its factorization.

11131011121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14663.

The product of its (nonzero) digits is 6, while the sum is 13.

Adding to 11131011121 its reverse (12111013111), we get a palindrome (23242024232).

The spelling of 11131011121 in words is "eleven billion, one hundred thirty-one million, eleven thousand, one hundred twenty-one".