1321101002203 has 8 divisors (see below), whose sum is σ = 1431343357488. Its totient is φ = 1214473150464.

The previous prime is 1321101002147. The next prime is 1321101002227. The reversal of 1321101002203 is 3022001011231.

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

It is a cyclic number.

It is not a de Polignac number, because 1321101002203 - 2²¹ = 1321098905051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1321101002293) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 903625126 + ... + 903626587.

It is an arithmetic number, because the mean of its divisors is an integer number (178917919686).

Almost surely, 2^{1321101002203} is an apocalyptic number.

1321101002203 is a deficient number, since it is larger than the sum of its proper divisors (110242355285).

1321101002203 is a wasteful number, since it uses less digits than its factorization.

1321101002203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1807251773.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 1321101002203 its reverse (3022001011231), we get a palindrome (4343102013434).

The spelling of 1321101002203 in words is "one trillion, three hundred twenty-one billion, one hundred one million, two thousand, two hundred three".