21140432003 has 2 divisors, whose sum is σ = 21140432004. Its totient is φ = 21140432002.

The previous prime is 21140431987. The next prime is 21140432041. The reversal of 21140432003 is 30023404112.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21140432003 - 2⁴ = 21140431987 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (21140432503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10570216001 + 10570216002.

It is an arithmetic number, because the mean of its divisors is an integer number (10570216002).

Almost surely, 2^21140432003 is an apocalyptic number.

21140432003 is a deficient number, since it is larger than the sum of its proper divisors (1).

21140432003 is an equidigital number, since it uses as much as digits as its factorization.

21140432003 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 21140432003 its reverse (30023404112), we get a palindrome (51163836115).

The spelling of 21140432003 in words is "twenty-one billion, one hundred forty million, four hundred thirty-two thousand, three".