10021004423 has 4 divisors (see below), whose sum is σ = 10093098120. Its totient is φ = 9948910728.

The previous prime is 10021004407. The next prime is 10021004431. The reversal of 10021004423 is 32440012001.

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 10021004423 - 2⁴ = 10021004407 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10021004443) 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, 36046640 + ... + 36046917.

It is an arithmetic number, because the mean of its divisors is an integer number (2523274530).

Almost surely, 2^10021004423 is an apocalyptic number.

10021004423 is a deficient number, since it is larger than the sum of its proper divisors (72093697).

10021004423 is an equidigital number, since it uses as much as digits as its factorization.

10021004423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72093696.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 10021004423 its reverse (32440012001), we get a palindrome (42461016424).

The spelling of 10021004423 in words is "ten billion, twenty-one million, four thousand, four hundred twenty-three".