113023212012 has 72 divisors (see below), whose sum is σ = 303470281296. Its totient is φ = 35344917504.

The previous prime is 113023211969. The next prime is 113023212019. The reversal of 113023212012 is 210212320311.

113023212012 is a `hidden beast` number, since 11 + 302 + 321 + 20 + 12 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (113023212019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 103458 + ... + 486569.

It is an arithmetic number, because the mean of its divisors is an integer number (4214865018).

Almost surely, 2^113023212012 is an apocalyptic number.

113023212012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

113023212012 is an abundant number, since it is smaller than the sum of its proper divisors (190447069284).

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

113023212012 is a wasteful number, since it uses less digits than its factorization.

113023212012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 590367 (or 590362 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 113023212012 its reverse (210212320311), we get a palindrome (323235532323).

The spelling of 113023212012 in words is "one hundred thirteen billion, twenty-three million, two hundred twelve thousand, twelve".