21143140003 has 4 divisors (see below), whose sum is σ = 21211124688. Its totient is φ = 21075155320.

The previous prime is 21143139977. The next prime is 21143140049. The reversal of 21143140003 is 30004134112.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 21143140003 - 2¹³ = 21143131811 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21143141003) 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 3 ways as a sum of consecutive naturals, for example, 33991876 + ... + 33992497.

It is an arithmetic number, because the mean of its divisors is an integer number (5302781172).

Almost surely, 2^21143140003 is an apocalyptic number.

21143140003 is a deficient number, since it is larger than the sum of its proper divisors (67984685).

21143140003 is an equidigital number, since it uses as much as digits as its factorization.

21143140003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67984684.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 21143140003 its reverse (30004134112), we get a palindrome (51147274115).

The spelling of 21143140003 in words is "twenty-one billion, one hundred forty-three million, one hundred forty thousand, three".