1321321322102 has 4 divisors (see below), whose sum is σ = 1981981983156. Its totient is φ = 660660661050.

The previous prime is 1321321322081. The next prime is 1321321322137. The reversal of 1321321322102 is 2012231231231.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 330330330524 + ... + 330330330527.

It is an arithmetic number, because the mean of its divisors is an integer number (495495495789).

Almost surely, 2^{1321321322102} is an apocalyptic number.

1321321322102 is a deficient number, since it is larger than the sum of its proper divisors (660660661054).

1321321322102 is an equidigital number, since it uses as much as digits as its factorization.

1321321322102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 660660661053.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 1321321322102 its reverse (2012231231231), we get a palindrome (3333552553333).

The spelling of 1321321322102 in words is "one trillion, three hundred twenty-one billion, three hundred twenty-one million, three hundred twenty-two thousand, one hundred two".