1321031310202 has 16 divisors (see below), whose sum is σ = 1982356960320. Its totient is φ = 660245717248.

The previous prime is 1321031310197. The next prime is 1321031310257. The reversal of 1321031310202 is 2020131301231.

It is a self number, because there is not a number n which added to its sum of digits gives 1321031310202.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83554074 + ... + 83569882.

It is an arithmetic number, because the mean of its divisors is an integer number (123897310020).

Almost surely, 2^{1321031310202} is an apocalyptic number.

1321031310202 is a deficient number, since it is larger than the sum of its proper divisors (661325650118).

1321031310202 is a wasteful number, since it uses less digits than its factorization.

1321031310202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30245.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 1321031310202 its reverse (2020131301231), we get a palindrome (3341162611433).

The spelling of 1321031310202 in words is "one trillion, three hundred twenty-one billion, thirty-one million, three hundred ten thousand, two hundred two".