12310012121232 has 240 divisors, whose sum is σ = 37567995202752. Its totient is φ = 3462839009280.

The previous prime is 12310012121161. The next prime is 12310012121273. The reversal of 12310012121232 is 23212121001321.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 12310012121199 and 12310012121208.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 43892007 + ... + 44171577.

Almost surely, 2^{12310012121232} is an apocalyptic number.

12310012121232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12310012121232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18783997601376).

12310012121232 is an abundant number, since it is smaller than the sum of its proper divisors (25257983081520).

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

12310012121232 is a wasteful number, since it uses less digits than its factorization.

12310012121232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279886 (or 279873 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 12310012121232 its reverse (23212121001321), we get a palindrome (35522133122553).

The spelling of 12310012121232 in words is "twelve trillion, three hundred ten billion, twelve million, one hundred twenty-one thousand, two hundred thirty-two".