20043321231 has 8 divisors (see below), whose sum is σ = 27177384960. Its totient is φ = 13135735832.

The previous prime is 20043321209. The next prime is 20043321241. The reversal of 20043321231 is 13212334002.

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 20043321231 - 2²⁶ = 19976212367 is a prime.

It is a super-2 number, since 2×20043321231² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20043321198 and 20043321207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20043321241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56619375 + ... + 56619728.

It is an arithmetic number, because the mean of its divisors is an integer number (3397173120).

Almost surely, 2^20043321231 is an apocalyptic number.

20043321231 is a deficient number, since it is larger than the sum of its proper divisors (7134063729).

20043321231 is a wasteful number, since it uses less digits than its factorization.

20043321231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113239165.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 20043321231 its reverse (13212334002), we get a palindrome (33255655233).

The spelling of 20043321231 in words is "twenty billion, forty-three million, three hundred twenty-one thousand, two hundred thirty-one".