1121313112 has 32 divisors (see below), whose sum is σ = 2197497600. Its totient is φ = 535394464.

The previous prime is 1121313091. The next prime is 1121313119. The reversal of 1121313112 is 2113131211.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121313119) 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, 114339 + ... + 123757.

It is an arithmetic number, because the mean of its divisors is an integer number (68671800).

Almost surely, 2^1121313112 is an apocalyptic number.

It is an amenable number.

1121313112 is a deficient number, since it is larger than the sum of its proper divisors (1076184488).

1121313112 is a wasteful number, since it uses less digits than its factorization.

1121313112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10095 (or 10091 counting only the distinct ones).

The product of its digits is 36, while the sum is 16.

The square root of 1121313112 is about 33486.0136773549. The cubic root of 1121313112 is about 1038.9045146201.

Adding to 1121313112 its reverse (2113131211), we get a palindrome (3234444323).

The spelling of 1121313112 in words is "one billion, one hundred twenty-one million, three hundred thirteen thousand, one hundred twelve".