21443141003 has 4 divisors (see below), whose sum is σ = 21443439600. Its totient is φ = 21442842408.

The previous prime is 21443140991. The next prime is 21443141023. The reversal of 21443141003 is 30014134412.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 21443141003 - 2¹⁰ = 21443139979 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 21443141003.

It is not an unprimeable number, because it can be changed into a prime (21443141023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31001 + ... + 209397.

It is an arithmetic number, because the mean of its divisors is an integer number (5360859900).

Almost surely, 2^21443141003 is an apocalyptic number.

21443141003 is a deficient number, since it is larger than the sum of its proper divisors (298597).

21443141003 is a wasteful number, since it uses less digits than its factorization.

21443141003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298596.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 21443141003 its reverse (30014134412), we get a palindrome (51457275415).

The spelling of 21443141003 in words is "twenty-one billion, four hundred forty-three million, one hundred forty-one thousand, three".