11121120211131 has 16 divisors (see below), whose sum is σ = 18829409881600. Its totient is φ = 6354925834824.

The previous prime is 11121120211109. The next prime is 11121120211133. The reversal of 11121120211131 is 13111202112111.

11121120211131 is a `hidden beast` number, since 111 + 211 + 2 + 0 + 211 + 131 = 666.

It is not a de Polignac number, because 11121120211131 - 2⁹ = 11121120210619 is a prime.

It is a super-2 number, since 2×11121120211131² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11121120211133) 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, 29420952751 + ... + 29420953128.

It is an arithmetic number, because the mean of its divisors is an integer number (1176838117600).

Almost surely, 2^{11121120211131} is an apocalyptic number.

11121120211131 is a deficient number, since it is larger than the sum of its proper divisors (7708289670469).

11121120211131 is an equidigital number, since it uses as much as digits as its factorization.

11121120211131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58841905895 (or 58841905889 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 18.

Adding to 11121120211131 its reverse (13111202112111), we get a palindrome (24232322323242).

The spelling of 11121120211131 in words is "eleven trillion, one hundred twenty-one billion, one hundred twenty million, two hundred eleven thousand, one hundred thirty-one".