113210121012 has 24 divisors (see below), whose sum is σ = 264366799200. Its totient is φ = 37706728416.

The previous prime is 113210120993. The next prime is 113210121023. The reversal of 113210121012 is 210121012311.

It is a junction number, because it is equal to n+sod(n) for n = 113210120982 and 113210121000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3731587 + ... + 3761802.

It is an arithmetic number, because the mean of its divisors is an integer number (11015283300).

Almost surely, 2^113210121012 is an apocalyptic number.

113210121012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

113210121012 is an abundant number, since it is smaller than the sum of its proper divisors (151156678188).

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

113210121012 is a wasteful number, since it uses less digits than its factorization.

113210121012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7494655 (or 7494653 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 113210121012 its reverse (210121012311), we get a palindrome (323331133323).

The spelling of 113210121012 in words is "one hundred thirteen billion, two hundred ten million, one hundred twenty-one thousand, twelve".