20243321231 has 8 divisors (see below), whose sum is σ = 23234518944. Its totient is φ = 17276947200.

The previous prime is 20243321179. The next prime is 20243321279. The reversal of 20243321231 is 13212334202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20243321231 - 2²⁶ = 20176212367 is a prime.

It is a super-2 number, since 2×20243321231² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20243321197 and 20243321206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20243321291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6204170 + ... + 6207431.

It is an arithmetic number, because the mean of its divisors is an integer number (2904314868).

Almost surely, 2^20243321231 is an apocalyptic number.

20243321231 is a deficient number, since it is larger than the sum of its proper divisors (2991197713).

20243321231 is a wasteful number, since it uses less digits than its factorization.

20243321231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12411841.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 20243321231 its reverse (13212334202), we get a palindrome (33455655433).

The spelling of 20243321231 in words is "twenty billion, two hundred forty-three million, three hundred twenty-one thousand, two hundred thirty-one".