21234014305104 has 20 divisors (see below), whose sum is σ = 54854536954976. Its totient is φ = 7078004768352.

The previous prime is 21234014305079. The next prime is 21234014305117. The reversal of 21234014305104 is 40150341043212.

It is a super-2 number, since 2×21234014305104² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 221187648964 + ... + 221187649059.

Almost surely, 2^{21234014305104} is an apocalyptic number.

21234014305104 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

21234014305104 is an abundant number, since it is smaller than the sum of its proper divisors (33620522649872).

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

21234014305104 is a wasteful number, since it uses less digits than its factorization.

21234014305104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 442375298034 (or 442375298028 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

Adding to 21234014305104 its reverse (40150341043212), we get a palindrome (61384355348316).

The spelling of 21234014305104 in words is "twenty-one trillion, two hundred thirty-four billion, fourteen million, three hundred five thousand, one hundred four".