10421004443 has 2 divisors, whose sum is σ = 10421004444. Its totient is φ = 10421004442.

The previous prime is 10421004439. The next prime is 10421004457. The reversal of 10421004443 is 34440012401.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (34440012401) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10421004443 - 2² = 10421004439 is a prime.

It is not a weakly prime, because it can be changed into another prime (10421004413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5210502221 + 5210502222.

It is an arithmetic number, because the mean of its divisors is an integer number (5210502222).

Almost surely, 2^10421004443 is an apocalyptic number.

10421004443 is a deficient number, since it is larger than the sum of its proper divisors (1).

10421004443 is an equidigital number, since it uses as much as digits as its factorization.

10421004443 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 10421004443 its reverse (34440012401), we get a palindrome (44861016844).

The spelling of 10421004443 in words is "ten billion, four hundred twenty-one million, four thousand, four hundred forty-three".