423023111231 has 12 divisors (see below), whose sum is σ = 492834866040. Its totient is φ = 362040996240.

The previous prime is 423023111213. The next prime is 423023111267. The reversal of 423023111231 is 132111320324.

It is not a de Polignac number, because 423023111231 - 2²⁶ = 422956002367 is a prime.

It is a super-2 number, since 2×423023111231² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 423023111197 and 423023111206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423023111831) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6517880 + ... + 6582461.

It is an arithmetic number, because the mean of its divisors is an integer number (41069572170).

Almost surely, 2^423023111231 is an apocalyptic number.

423023111231 is a deficient number, since it is larger than the sum of its proper divisors (69811754809).

423023111231 is a wasteful number, since it uses less digits than its factorization.

423023111231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13101014 (or 13101007 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 423023111231 its reverse (132111320324), we get a palindrome (555134431555).

The spelling of 423023111231 in words is "four hundred twenty-three billion, twenty-three million, one hundred eleven thousand, two hundred thirty-one".