20001021013324 has 12 divisors (see below), whose sum is σ = 37694231909824. Its totient is φ = 9231240467664.

The previous prime is 20001021013313. The next prime is 20001021013373. The reversal of 20001021013324 is 42331012010002.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 192317509692 + ... + 192317509795.

Almost surely, 2^{20001021013324} is an apocalyptic number.

It is an amenable number.

20001021013324 is a deficient number, since it is larger than the sum of its proper divisors (17693210896500).

20001021013324 is a wasteful number, since it uses less digits than its factorization.

20001021013324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 384635019504 (or 384635019502 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 20001021013324 its reverse (42331012010002), we get a palindrome (62332033023326).

The spelling of 20001021013324 in words is "twenty trillion, one billion, twenty-one million, thirteen thousand, three hundred twenty-four".