21120311302112 has 96 divisors (see below), whose sum is σ = 45415745625600. Its totient is φ = 9588490329600.

The previous prime is 21120311302093. The next prime is 21120311302133.

21120311302112 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2103821189 + ... + 2103831227.

It is an arithmetic number, because the mean of its divisors is an integer number (473080683600).

Almost surely, 2^{21120311302112} is an apocalyptic number.

21120311302112 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

21120311302112 is an abundant number, since it is smaller than the sum of its proper divisors (24295434323488).

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

21120311302112 is a wasteful number, since it uses less digits than its factorization.

21120311302112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16720 (or 16712 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 20.

It can be divided in two parts, 2112031 and 1302112, that added together give a palindrome (3414143).

The spelling of 21120311302112 in words is "twenty-one trillion, one hundred twenty billion, three hundred eleven million, three hundred two thousand, one hundred twelve".