20421324230302 has 32 divisors (see below), whose sum is σ = 30966505623360. Its totient is φ = 10099541813760.

The previous prime is 20421324230273. The next prime is 20421324230327. The reversal of 20421324230302 is 20303242312402.

It is a super-2 number, since 2×20421324230302² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 315554724 + ... + 315619432.

It is an arithmetic number, because the mean of its divisors is an integer number (967703300730).

Almost surely, 2^{20421324230302} is an apocalyptic number.

20421324230302 is a deficient number, since it is larger than the sum of its proper divisors (10545181393058).

20421324230302 is a wasteful number, since it uses less digits than its factorization.

20421324230302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67668.

The product of its (nonzero) digits is 13824, while the sum is 28.

Adding to 20421324230302 its reverse (20303242312402), we get a palindrome (40724566542704).

The spelling of 20421324230302 in words is "twenty trillion, four hundred twenty-one billion, three hundred twenty-four million, two hundred thirty thousand, three hundred two".