1113013212 has 24 divisors (see below), whose sum is σ = 2680806912. Its totient is φ = 359036400.

The previous prime is 1113013189. The next prime is 1113013219. The reversal of 1113013212 is 2123103111.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1113013191 and 1113013200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1113013219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1495614 + ... + 1496357.

It is an arithmetic number, because the mean of its divisors is an integer number (111700288).

Almost surely, 2^1113013212 is an apocalyptic number.

1113013212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1113013212 is an abundant number, since it is smaller than the sum of its proper divisors (1567793700).

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

1113013212 is a wasteful number, since it uses less digits than its factorization.

1113013212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2992009 (or 2992007 counting only the distinct ones).

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

The square root of 1113013212 is about 33361.8526463984. The cubic root of 1113013212 is about 1036.3348586849.

Adding to 1113013212 its reverse (2123103111), we get a palindrome (3236116323).

It can be divided in two parts, 11130 and 13212, that added together give a palindrome (24342).

The spelling of 1113013212 in words is "one billion, one hundred thirteen million, thirteen thousand, two hundred twelve".