21143010003 has 16 divisors (see below), whose sum is σ = 28340582400. Its totient is φ = 14020522880.

The previous prime is 21143009989. The next prime is 21143010043. The reversal of 21143010003 is 30001034112.

It is a cyclic number.

It is not a de Polignac number, because 21143010003 - 2⁸ = 21143009747 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21143010043) 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 15 ways as a sum of consecutive naturals, for example, 637003 + ... + 669371.

It is an arithmetic number, because the mean of its divisors is an integer number (1771286400).

Almost surely, 2^21143010003 is an apocalyptic number.

21143010003 is a deficient number, since it is larger than the sum of its proper divisors (7197572397).

21143010003 is a wasteful number, since it uses less digits than its factorization.

21143010003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33522.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 21143010003 its reverse (30001034112), we get a palindrome (51144044115).

The spelling of 21143010003 in words is "twenty-one billion, one hundred forty-three million, ten thousand, three".