21113477431112 has 64 divisors (see below), whose sum is σ = 43250731358400. Its totient is φ = 9582803184640.

The previous prime is 21113477431097. The next prime is 21113477431139.

21113477431112 is nontrivially palindromic in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 278912564 + ... + 278988252.

It is an arithmetic number, because the mean of its divisors is an integer number (675792677475).

Almost surely, 2^{21113477431112} is an apocalyptic number.

21113477431112 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

21113477431112 is an abundant number, since it is smaller than the sum of its proper divisors (22137253927288).

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

21113477431112 is a wasteful number, since it uses less digits than its factorization.

21113477431112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80366 (or 80362 counting only the distinct ones).

The product of its digits is 28224, while the sum is 38.

It can be divided in two parts, 2111347 and 7431112, that added together give a palindrome (9542459).

The spelling of 21113477431112 in words is "twenty-one trillion, one hundred thirteen billion, four hundred seventy-seven million, four hundred thirty-one thousand, one hundred twelve".