12231312030 has 48 divisors (see below), whose sum is σ = 36344471904. Its totient is φ = 2795728320.

The previous prime is 12231312029. The next prime is 12231312091. The reversal of 12231312030 is 3021313221.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 12231311994 and 12231312012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9706761 + ... + 9708020.

It is an arithmetic number, because the mean of its divisors is an integer number (757176498).

Almost surely, 2^12231312030 is an apocalyptic number.

12231312030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12231312030 is an abundant number, since it is smaller than the sum of its proper divisors (24113159874).

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

12231312030 is a wasteful number, since it uses less digits than its factorization.

12231312030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19414801 (or 19414798 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 12231312030 its reverse (3021313221), we get a palindrome (15252625251).

The spelling of 12231312030 in words is "twelve billion, two hundred thirty-one million, three hundred twelve thousand, thirty".