1321331103102 has 16 divisors (see below), whose sum is σ = 2798112924432. Its totient is φ = 414535248000.

The previous prime is 1321331103097. The next prime is 1321331103161. The reversal of 1321331103102 is 2013011331231.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6477113149 + ... + 6477113352.

It is an arithmetic number, because the mean of its divisors is an integer number (174882057777).

Almost surely, 2^{1321331103102} is an apocalyptic number.

1321331103102 is an abundant number, since it is smaller than the sum of its proper divisors (1476781821330).

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

1321331103102 is a wasteful number, since it uses less digits than its factorization.

1321331103102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12954226523.

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 1321331103102 its reverse (2013011331231), we get a palindrome (3334342434333).

The spelling of 1321331103102 in words is "one trillion, three hundred twenty-one billion, three hundred thirty-one million, one hundred three thousand, one hundred two".