1113012012 has 24 divisors (see below), whose sum is σ = 2968032256. Its totient is φ = 318003408.

The previous prime is 1113011993. The next prime is 1113012013. The reversal of 1113012012 is 2102103111.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (1113012013) 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, 6624988 + ... + 6625155.

Almost surely, 2^1113012012 is an apocalyptic number.

1113012012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1113012012 is an abundant number, since it is smaller than the sum of its proper divisors (1855020244).

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

1113012012 is a wasteful number, since it uses less digits than its factorization.

1113012012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13250157 (or 13250155 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 12.

The square root of 1113012012 is about 33361.8346617808. The cubic root of 1113012012 is about 1036.3344862418.

Adding to 1113012012 its reverse (2102103111), we get a palindrome (3215115123).

The spelling of 1113012012 in words is "one billion, one hundred thirteen million, twelve thousand, twelve".