20224123231 has 8 divisors (see below), whose sum is σ = 21860197184. Its totient is φ = 18599531040.

The previous prime is 20224123223. The next prime is 20224123237. The reversal of 20224123231 is 13232142202.

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 20224123231 - 2³ = 20224123223 is a prime.

It is a super-2 number, since 2×20224123231² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20224123237) 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, 2866776 + ... + 2873821.

It is an arithmetic number, because the mean of its divisors is an integer number (2732524648).

Almost surely, 2^20224123231 is an apocalyptic number.

20224123231 is a deficient number, since it is larger than the sum of its proper divisors (1636073953).

20224123231 is a wasteful number, since it uses less digits than its factorization.

20224123231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5740881.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 20224123231 its reverse (13232142202), we get a palindrome (33456265433).

The spelling of 20224123231 in words is "twenty billion, two hundred twenty-four million, one hundred twenty-three thousand, two hundred thirty-one".