21143434022103 has 16 divisors (see below), whose sum is σ = 28532617981056. Its totient is φ = 13924956837600.

The previous prime is 21143434022059. The next prime is 21143434022153. The reversal of 21143434022103 is 30122043434112.

It is not a de Polignac number, because 21143434022103 - 2¹⁷ = 21143433891031 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21143434022153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1596301 + ... + 6695897.

It is an arithmetic number, because the mean of its divisors is an integer number (1783288623816).

Almost surely, 2^{21143434022103} is an apocalyptic number.

21143434022103 is a deficient number, since it is larger than the sum of its proper divisors (7389183958953).

21143434022103 is a wasteful number, since it uses less digits than its factorization.

21143434022103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5116334.

The product of its (nonzero) digits is 13824, while the sum is 30.

Adding to 21143434022103 its reverse (30122043434112), we get a palindrome (51265477456215).

The spelling of 21143434022103 in words is "twenty-one trillion, one hundred forty-three billion, four hundred thirty-four million, twenty-two thousand, one hundred three".