21113144131112 has 24 divisors (see below), whose sum is σ = 43513143123450. Its totient is φ = 9596883695520.

The previous prime is 21113144131067. The next prime is 21113144131117.

21113144131112 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in only one way, i.e., 12949015128676 + 8164129002436 = 3598474^2 + 2857294^2 .

It is a super-2 number, since 2×21113144131112² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (21113144131117) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 10905548687 + ... + 10905550622.

Almost surely, 2^{21113144131112} is an apocalyptic number.

21113144131112 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

21113144131112 is an abundant number, since it is smaller than the sum of its proper divisors (22399998992338).

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

21113144131112 is a wasteful number, since it uses less digits than its factorization.

21113144131112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21811099337 (or 21811099322 counting only the distinct ones).

The product of its digits is 576, while the sum is 26.

It can be divided in two parts, 2111314 and 4131112, that added together give a palindrome (6242426).

The spelling of 21113144131112 in words is "twenty-one trillion, one hundred thirteen billion, one hundred forty-four million, one hundred thirty-one thousand, one hundred twelve".