21434022003 has 32 divisors (see below), whose sum is σ = 30160166400. Its totient is φ = 13521263616.

The previous prime is 21434021993. The next prime is 21434022017. The reversal of 21434022003 is 30022043412.

It is not a de Polignac number, because 21434022003 - 2⁵ = 21434021971 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21434022403) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 856888 + ... + 881546.

It is an arithmetic number, because the mean of its divisors is an integer number (942505200).

Almost surely, 2^21434022003 is an apocalyptic number.

21434022003 is a deficient number, since it is larger than the sum of its proper divisors (8726144397).

21434022003 is a wasteful number, since it uses less digits than its factorization.

21434022003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24891.

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 21434022003 its reverse (30022043412), we get a palindrome (51456065415).

The spelling of 21434022003 in words is "twenty-one billion, four hundred thirty-four million, twenty-two thousand, three".