10021323004 has 72 divisors (see below), whose sum is σ = 22973207040. Its totient is φ = 3778437600.

The previous prime is 10021322999. The next prime is 10021323029. The reversal of 10021323004 is 40032312001.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8134 + ... + 141805.

It is an arithmetic number, because the mean of its divisors is an integer number (319072320).

Almost surely, 2^10021323004 is an apocalyptic number.

10021323004 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10021323004, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11486603520).

10021323004 is an abundant number, since it is smaller than the sum of its proper divisors (12951884036).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10021323004 is a wasteful number, since it uses less digits than its factorization.

10021323004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149999 (or 149990 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 10021323004 its reverse (40032312001), we get a palindrome (50053635005).

The spelling of 10021323004 in words is "ten billion, twenty-one million, three hundred twenty-three thousand, four".