20323230231 has 16 divisors (see below), whose sum is σ = 27173426400. Its totient is φ = 13510963200.

The previous prime is 20323230173. The next prime is 20323230251. The reversal of 20323230231 is 13203232302.

It is not a de Polignac number, because 20323230231 - 2¹³ = 20323222039 is a prime.

It is a super-2 number, since 2×20323230231² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20323230198 and 20323230207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20323230251) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3328081 + ... + 3334181.

It is an arithmetic number, because the mean of its divisors is an integer number (1698339150).

Almost surely, 2^20323230231 is an apocalyptic number.

20323230231 is a deficient number, since it is larger than the sum of its proper divisors (6850196169).

20323230231 is a wasteful number, since it uses less digits than its factorization.

20323230231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9026.

The product of its (nonzero) digits is 1296, while the sum is 21.

Adding to 20323230231 its reverse (13203232302), we get a palindrome (33526462533).

The spelling of 20323230231 in words is "twenty billion, three hundred twenty-three million, two hundred thirty thousand, two hundred thirty-one".