1321102210203 has 16 divisors (see below), whose sum is σ = 1976566567200. Its totient is φ = 872014658400.

The previous prime is 1321102210201. The next prime is 1321102210229. The reversal of 1321102210203 is 3020122011231.

1321102210203 is a `hidden beast` number, since 132 + 110 + 221 + 0 + 203 = 666.

It is not a de Polignac number, because 1321102210203 - 2¹ = 1321102210201 is a prime.

It is a super-2 number, since 2×1321102210203² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1321102210201) 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, 242223568 + ... + 242229021.

It is an arithmetic number, because the mean of its divisors is an integer number (123535410450).

Almost surely, 2^{1321102210203} is an apocalyptic number.

1321102210203 is a deficient number, since it is larger than the sum of its proper divisors (655464356997).

1321102210203 is a wasteful number, since it uses less digits than its factorization.

1321102210203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 484452699 (or 484452693 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 1321102210203 its reverse (3020122011231), we get a palindrome (4341224221434).

The spelling of 1321102210203 in words is "one trillion, three hundred twenty-one billion, one hundred two million, two hundred ten thousand, two hundred three".