20231021204 has 24 divisors (see below), whose sum is σ = 35874101760. Its totient is φ = 9981432864.

The previous prime is 20231021189. The next prime is 20231021219. The reversal of 20231021204 is 40212013202.

It is an interprime number because it is at equal distance from previous prime (20231021189) and next prime (20231021219).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 529157 + ... + 566099.

It is an arithmetic number, because the mean of its divisors is an integer number (1494754240).

Almost surely, 2^20231021204 is an apocalyptic number.

It is an amenable number.

20231021204 is a deficient number, since it is larger than the sum of its proper divisors (15643080556).

20231021204 is a wasteful number, since it uses less digits than its factorization.

20231021204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38759 (or 38757 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 20231021204 its reverse (40212013202), we get a palindrome (60443034406).

The spelling of 20231021204 in words is "twenty billion, two hundred thirty-one million, twenty-one thousand, two hundred four".