1321220313102 has 8 divisors (see below), whose sum is σ = 2642440626216. Its totient is φ = 440406771032.

The previous prime is 1321220313079. The next prime is 1321220313163. The reversal of 1321220313102 is 2013130221231.

It is a sphenic number, since it is the product of 3 distinct primes.

1321220313102 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 110101692753 + ... + 110101692764.

It is an arithmetic number, because the mean of its divisors is an integer number (330305078277).

Almost surely, 2^{1321220313102} is an apocalyptic number.

1321220313102 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1321220313102 is a wasteful number, since it uses less digits than its factorization.

1321220313102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220203385522.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 1321220313102 its reverse (2013130221231), we get a palindrome (3334350534333).

The spelling of 1321220313102 in words is "one trillion, three hundred twenty-one billion, two hundred twenty million, three hundred thirteen thousand, one hundred two".