10021324340 has 24 divisors (see below), whose sum is σ = 21086147880. Its totient is φ = 4000650368.

The previous prime is 10021324289. The next prime is 10021324343. The reversal of 10021324340 is 4342312001.

It can be written as a sum of positive squares in 4 ways, for example, as 419676196 + 9601648144 = 20486^2 + 97988^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10021324343) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 482027 + ... + 502386.

It is an arithmetic number, because the mean of its divisors is an integer number (878589495).

Almost surely, 2^10021324340 is an apocalyptic number.

10021324340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10021324340 is an abundant number, since it is smaller than the sum of its proper divisors (11064823540).

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

10021324340 is a wasteful number, since it uses less digits than its factorization.

10021324340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 984931 (or 984929 counting only the distinct ones).

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

Adding to 10021324340 its reverse (4342312001), we get a palindrome (14363636341).

The spelling of 10021324340 in words is "ten billion, twenty-one million, three hundred twenty-four thousand, three hundred forty".