1313120112 has 20 divisors (see below), whose sum is σ = 3392227080. Its totient is φ = 437706688.

The previous prime is 1313120093. The next prime is 1313120119. The reversal of 1313120112 is 2110213131.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1313120091 and 1313120100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1313120119) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13678287 + ... + 13678382.

It is an arithmetic number, because the mean of its divisors is an integer number (169611354).

Almost surely, 2^1313120112 is an apocalyptic number.

1313120112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1313120112 is an abundant number, since it is smaller than the sum of its proper divisors (2079106968).

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

1313120112 is a wasteful number, since it uses less digits than its factorization.

1313120112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27356680 (or 27356674 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 15.

The square root of 1313120112 is about 36236.9992135110. Note that the first 3 decimals coincide. The cubic root of 1313120112 is about 1095.0521890849.

Adding to 1313120112 its reverse (2110213131), we get a palindrome (3423333243).

The spelling of 1313120112 in words is "one billion, three hundred thirteen million, one hundred twenty thousand, one hundred twelve".