21114042421043 has 16 divisors (see below), whose sum is σ = 24805475251200. Its totient is φ = 17717958504480.

The previous prime is 21114042421037. The next prime is 21114042421091. The reversal of 21114042421043 is 34012424041112.

It is not a de Polignac number, because 21114042421043 - 2⁴ = 21114042421027 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21114042420997 and 21114042421015.

It is not an unprimeable number, because it can be changed into a prime (21114042721043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25669598 + ... + 26479356.

It is an arithmetic number, because the mean of its divisors is an integer number (1550342203200).

Almost surely, 2^{21114042421043} is an apocalyptic number.

21114042421043 is a deficient number, since it is larger than the sum of its proper divisors (3691432830157).

21114042421043 is a wasteful number, since it uses less digits than its factorization.

21114042421043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 992122.

The product of its (nonzero) digits is 6144, while the sum is 29.

Adding to 21114042421043 its reverse (34012424041112), we get a palindrome (55126466462155).

The spelling of 21114042421043 in words is "twenty-one trillion, one hundred fourteen billion, forty-two million, four hundred twenty-one thousand, forty-three".