123231110320 has 40 divisors (see below), whose sum is σ = 286526933424. Its totient is φ = 49289932032.

The previous prime is 123231110291. The next prime is 123231110323. The reversal of 123231110320 is 23011132321.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (123231110323) 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, 3074247 + ... + 3114073.

Almost surely, 2^123231110320 is an apocalyptic number.

123231110320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123231110320 is an abundant number, since it is smaller than the sum of its proper divisors (163295823104).

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

123231110320 is a wasteful number, since it uses less digits than its factorization.

123231110320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78517 (or 78511 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 123231110320 its reverse (23011132321), we get a palindrome (146242242641).

The spelling of 123231110320 in words is "one hundred twenty-three billion, two hundred thirty-one million, one hundred ten thousand, three hundred twenty".