20024304321 has 32 divisors (see below), whose sum is σ = 31919597568. Its totient is φ = 10917561600.

The previous prime is 20024304283. The next prime is 20024304341. The reversal of 20024304321 is 12340342002.

It is not a de Polignac number, because 20024304321 - 2¹⁰ = 20024303297 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (20024304341) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 141990 + ... + 245376.

It is an arithmetic number, because the mean of its divisors is an integer number (997487424).

Almost surely, 2^20024304321 is an apocalyptic number.

20024304321 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

20024304321 is a deficient number, since it is larger than the sum of its proper divisors (11895293247).

20024304321 is a wasteful number, since it uses less digits than its factorization.

20024304321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103821.

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 20024304321 its reverse (12340342002), we get a palindrome (32364646323).

The spelling of 20024304321 in words is "twenty billion, twenty-four million, three hundred four thousand, three hundred twenty-one".