1321034234212 has 96 divisors (see below), whose sum is σ = 2999502213120. Its totient is φ = 493964526720.

The previous prime is 1321034234197. The next prime is 1321034234239. The reversal of 1321034234212 is 2124324301231.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1048833 + ... + 1934455.

It is an arithmetic number, because the mean of its divisors is an integer number (31244814720).

Almost surely, 2^{1321034234212} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1321034234212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1499751106560).

1321034234212 is an abundant number, since it is smaller than the sum of its proper divisors (1678467978908).

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

1321034234212 is a wasteful number, since it uses less digits than its factorization.

1321034234212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 885841 (or 885839 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 1321034234212 its reverse (2124324301231), we get a palindrome (3445358535443).

The spelling of 1321034234212 in words is "one trillion, three hundred twenty-one billion, thirty-four million, two hundred thirty-four thousand, two hundred twelve".