1213302234432 has 112 divisors (see below), whose sum is σ = 3245859448832. Its totient is φ = 399951889920.

The previous prime is 1213302234383. The next prime is 1213302234439. The reversal of 1213302234432 is 2344322033121.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1213302234432.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213302234439) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14334957 + ... + 14419347.

It is an arithmetic number, because the mean of its divisors is an integer number (28980887936).

Almost surely, 2^{1213302234432} is an apocalyptic number.

1213302234432 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 1213302234432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1622929724416).

1213302234432 is an abundant number, since it is smaller than the sum of its proper divisors (2032557214400).

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

1213302234432 is a wasteful number, since it uses less digits than its factorization.

1213302234432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85236 (or 85226 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 30.

Adding to 1213302234432 its reverse (2344322033121), we get a palindrome (3557624267553).

The spelling of 1213302234432 in words is "one trillion, two hundred thirteen billion, three hundred two million, two hundred thirty-four thousand, four hundred thirty-two".