123231013230 has 64 divisors (see below), whose sum is σ = 318607023168. Its totient is φ = 30324049920.

The previous prime is 123231013189. The next prime is 123231013237. The reversal of 123231013230 is 32310132321.

It is a junction number, because it is equal to n+sod(n) for n = 123231013197 and 123231013206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123231013237) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1205520 + ... + 1303740.

It is an arithmetic number, because the mean of its divisors is an integer number (4978234737).

Almost surely, 2^123231013230 is an apocalyptic number.

123231013230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123231013230 is an abundant number, since it is smaller than the sum of its proper divisors (195376009938).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123231013230 is a wasteful number, since it uses less digits than its factorization.

123231013230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101461.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 123231013230 its reverse (32310132321), we get a palindrome (155541145551).

The spelling of 123231013230 in words is "one hundred twenty-three billion, two hundred thirty-one million, thirteen thousand, two hundred thirty".