1321231331202 has 32 divisors (see below), whose sum is σ = 2659494840192. Its totient is φ = 437572172544.

The previous prime is 1321231331197. The next prime is 1321231331209. The reversal of 1321231331202 is 2021331321231.

It is not an unprimeable number, because it can be changed into a prime (1321231331209) 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, 14530243 + ... + 14620889.

It is an arithmetic number, because the mean of its divisors is an integer number (83109213756).

Almost surely, 2^{1321231331202} is an apocalyptic number.

1321231331202 is an abundant number, since it is smaller than the sum of its proper divisors (1338263508990).

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

1321231331202 is a wasteful number, since it uses less digits than its factorization.

1321231331202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106282.

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 1321231331202 its reverse (2021331321231), we get a palindrome (3342562652433).

The spelling of 1321231331202 in words is "one trillion, three hundred twenty-one billion, two hundred thirty-one million, three hundred thirty-one thousand, two hundred two".