21113104314512 has 80 divisors (see below), whose sum is σ = 47787219993600. Its totient is φ = 9032789993472.

The previous prime is 21113104314493. The next prime is 21113104314539. The reversal of 21113104314512 is 21541340131112.

It is a super-3 number, since 3×21113104314512³ (a number of 41 digits) contains 333 as substring.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 167168 + ... + 6500319.

It is an arithmetic number, because the mean of its divisors is an integer number (597340249920).

Almost surely, 2^{21113104314512} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21113104314512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23893609996800).

21113104314512 is an abundant number, since it is smaller than the sum of its proper divisors (26674115679088).

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

21113104314512 is an equidigital number, since it uses as much as digits as its factorization.

21113104314512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6668093 (or 6668073 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 29.

Adding to 21113104314512 its reverse (21541340131112), we get a palindrome (42654444445624).

The spelling of 21113104314512 in words is "twenty-one trillion, one hundred thirteen billion, one hundred four million, three hundred fourteen thousand, five hundred twelve".