20124001020321 has 20 divisors (see below), whose sum is σ = 32794668330864. Its totient is φ = 12196364254200.

The previous prime is 20124001020313. The next prime is 20124001020329. The reversal of 20124001020321 is 12302010042102.

It is a happy number.

20124001020321 is a `hidden beast` number, since 2 + 0 + 1 + 240 + 0 + 102 + 0 + 321 = 666.

It is an interprime number because it is at equal distance from previous prime (20124001020313) and next prime (20124001020329).

It is not a de Polignac number, because 20124001020321 - 2³ = 20124001020313 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20124001020294 and 20124001020303.

It is not an unprimeable number, because it can be changed into a prime (20124001020329) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 11292928975 + ... + 11292930756.

Almost surely, 2^{20124001020321} is an apocalyptic number.

It is an amenable number.

20124001020321 is a deficient number, since it is larger than the sum of its proper divisors (12670667310543).

20124001020321 is a wasteful number, since it uses less digits than its factorization.

20124001020321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22585859754 (or 22585859745 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 20124001020321 its reverse (12302010042102), we get a palindrome (32426011062423).

The spelling of 20124001020321 in words is "twenty trillion, one hundred twenty-four billion, one million, twenty thousand, three hundred twenty-one".