11111131022 has 8 divisors (see below), whose sum is σ = 16822460376. Its totient is φ = 5503644232.

The previous prime is 11111131007. The next prime is 11111131027. The reversal of 11111131022 is 22013111111.

11111131022 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a junction number, because it is equal to n+sod(n) for n = 11111130988 and 11111131006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11111131027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25960373 + ... + 25960800.

It is an arithmetic number, because the mean of its divisors is an integer number (2102807547).

Almost surely, 2^11111131022 is an apocalyptic number.

11111131022 is a deficient number, since it is larger than the sum of its proper divisors (5711329354).

11111131022 is a wasteful number, since it uses less digits than its factorization.

11111131022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51921282.

The product of its (nonzero) digits is 12, while the sum is 14.

Adding to 11111131022 its reverse (22013111111), we get a palindrome (33124242133).

The spelling of 11111131022 in words is "eleven billion, one hundred eleven million, one hundred thirty-one thousand, twenty-two".