4021321040003 has 2 divisors, whose sum is σ = 4021321040004. Its totient is φ = 4021321040002.

The previous prime is 4021321039987. The next prime is 4021321040039. The reversal of 4021321040003 is 3000401231204.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4021321040003 - 2⁴ = 4021321039987 is a prime.

It is not a weakly prime, because it can be changed into another prime (4021321046003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2010660520001 + 2010660520002.

It is an arithmetic number, because the mean of its divisors is an integer number (2010660520002).

Almost surely, 2^{4021321040003} is an apocalyptic number.

4021321040003 is a deficient number, since it is larger than the sum of its proper divisors (1).

4021321040003 is an equidigital number, since it uses as much as digits as its factorization.

4021321040003 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 4021321040003 its reverse (3000401231204), we get a palindrome (7021722271207).

The spelling of 4021321040003 in words is "four trillion, twenty-one billion, three hundred twenty-one million, forty thousand, three".