11131340022 has 48 divisors (see below), whose sum is σ = 26320799232. Its totient is φ = 3371805360.

The previous prime is 11131339979. The next prime is 11131340023. The reversal of 11131340022 is 22004313111.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 11131339977 and 11131340004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11131340023) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 569943 + ... + 589149.

It is an arithmetic number, because the mean of its divisors is an integer number (548349984).

Almost surely, 2^11131340022 is an apocalyptic number.

11131340022 is an abundant number, since it is smaller than the sum of its proper divisors (15189459210).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11131340022 is a wasteful number, since it uses less digits than its factorization.

11131340022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22153 (or 22150 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 11131340022 its reverse (22004313111), we get a palindrome (33135653133).

It can be divided in two parts, 11131 and 340022, that added together give a palindrome (351153).

The spelling of 11131340022 in words is "eleven billion, one hundred thirty-one million, three hundred forty thousand, twenty-two".