1113122231 has 16 divisors (see below), whose sum is σ = 1210204800. Its totient is φ = 1017719040.

The previous prime is 1113122189. The next prime is 1113122251. The reversal of 1113122231 is 1322213111.

It is not a de Polignac number, because 1113122231 - 2²² = 1108927927 is a prime.

It is a super-2 number, since 2×1113122231² = 2478082202292834722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1113122251) 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, 1008626 + ... + 1009728.

It is an arithmetic number, because the mean of its divisors is an integer number (75637800).

Almost surely, 2^1113122231 is an apocalyptic number.

1113122231 is a deficient number, since it is larger than the sum of its proper divisors (97082569).

1113122231 is a wasteful number, since it uses less digits than its factorization.

1113122231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1786.

The product of its digits is 72, while the sum is 17.

The square root of 1113122231 is about 33363.4864934707. The cubic root of 1113122231 is about 1036.3686937135.

Adding to 1113122231 its reverse (1322213111), we get a palindrome (2435335342).

The spelling of 1113122231 in words is "one billion, one hundred thirteen million, one hundred twenty-two thousand, two hundred thirty-one".