20420023021324 has 12 divisors (see below), whose sum is σ = 35735309764000. Its totient is φ = 10209934517328.

The previous prime is 20420023021319. The next prime is 20420023021327. The reversal of 20420023021324 is 42312032002402.

It is not an unprimeable number, because it can be changed into a prime (20420023021327) 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, 18649524 + ... + 19714075.

Almost surely, 2^{20420023021324} is an apocalyptic number.

It is an amenable number.

20420023021324 is a deficient number, since it is larger than the sum of its proper divisors (15315286742676).

20420023021324 is a wasteful number, since it uses less digits than its factorization.

20420023021324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38496672 (or 38496670 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 20420023021324 its reverse (42312032002402), we get a palindrome (62732055023726).

The spelling of 20420023021324 in words is "twenty trillion, four hundred twenty billion, twenty-three million, twenty-one thousand, three hundred twenty-four".