203330113201321 has 4 divisors (see below), whose sum is σ = 203333069637972. Its totient is φ = 203327156764672.

The previous prime is 203330113201277. The next prime is 203330113201363. The reversal of 203330113201321 is 123102311033302.

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

It can be written as a sum of positive squares in 2 ways, for example, as 177833026514025 + 25497086687296 = 13335405^2 + 5049464^2 .

It is a cyclic number.

It is not a de Polignac number, because 203330113201321 - 2¹¹ = 203330113199273 is a prime.

It is a super-2 number, since 2×203330113201321² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (203330113201021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1478115160 + ... + 1478252713.

It is an arithmetic number, because the mean of its divisors is an integer number (50833267409493).

Almost surely, 2^{203330113201321} is an apocalyptic number.

It is an amenable number.

203330113201321 is a deficient number, since it is larger than the sum of its proper divisors (2956436651).

203330113201321 is an equidigital number, since it uses as much as digits as its factorization.

203330113201321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2956436650.

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 203330113201321 its reverse (123102311033302), we get a palindrome (326432424234623).

The spelling of 203330113201321 in words is "two hundred three trillion, three hundred thirty billion, one hundred thirteen million, two hundred one thousand, three hundred twenty-one".