1232320134312 has 128 divisors (see below), whose sum is σ = 3518887065600. Its totient is φ = 399300897024.

The previous prime is 1232320134229. The next prime is 1232320134323. The reversal of 1232320134312 is 2134310232321.

1232320134312 is a `hidden beast` number, since 1 + 2 + 3 + 23 + 201 + 3 + 431 + 2 = 666.

It is a super-2 number, since 2×1232320134312² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8616378 + ... + 8758230.

It is an arithmetic number, because the mean of its divisors is an integer number (27491305200).

Almost surely, 2^{1232320134312} is an apocalyptic number.

1232320134312 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 1232320134312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1759443532800).

1232320134312 is an abundant number, since it is smaller than the sum of its proper divisors (2286566931288).

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

1232320134312 is a wasteful number, since it uses less digits than its factorization.

1232320134312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142992 (or 142982 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

Adding to 1232320134312 its reverse (2134310232321), we get a palindrome (3366630366633).

The spelling of 1232320134312 in words is "one trillion, two hundred thirty-two billion, three hundred twenty million, one hundred thirty-four thousand, three hundred twelve".