1113131112 has 32 divisors (see below), whose sum is σ = 2929293600. Its totient is φ = 351514944.

The previous prime is 1113131101. The next prime is 1113131119. The reversal of 1113131112 is 2111313111.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 1113131091 and 1113131100.

It is not an unprimeable number, because it can be changed into a prime (1113131119) 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, 1220083 + ... + 1220994.

It is an arithmetic number, because the mean of its divisors is an integer number (91540425).

Almost surely, 2^1113131112 is an apocalyptic number.

1113131112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1113131112 is an abundant number, since it is smaller than the sum of its proper divisors (1816162488).

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

1113131112 is a wasteful number, since it uses less digits than its factorization.

1113131112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2441105 (or 2441101 counting only the distinct ones).

The product of its digits is 18, while the sum is 15.

The square root of 1113131112 is about 33363.6195878085. The cubic root of 1113131112 is about 1036.3714499145.

Adding to 1113131112 its reverse (2111313111), we get a palindrome (3224444223).

It can be divided in two parts, 111313111 and 2, that multiplied together give a palindrome (222626222).

The spelling of 1113131112 in words is "one billion, one hundred thirteen million, one hundred thirty-one thousand, one hundred twelve".