203023103321 has 4 divisors (see below), whose sum is σ = 203081130000. Its totient is φ = 202965076644.

The previous prime is 203023103249. The next prime is 203023103333. The reversal of 203023103321 is 123301320302.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 123301320302 = 2 ⋅61650660151.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-203023103321 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 203023103293 and 203023103302.

It is not an unprimeable number, because it can be changed into a prime (203023103021) 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, 29008091 + ... + 29015088.

It is an arithmetic number, because the mean of its divisors is an integer number (50770282500).

Almost surely, 2^203023103321 is an apocalyptic number.

It is an amenable number.

203023103321 is a deficient number, since it is larger than the sum of its proper divisors (58026679).

203023103321 is an equidigital number, since it uses as much as digits as its factorization.

203023103321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58026678.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 203023103321 its reverse (123301320302), we get a palindrome (326324423623).

The spelling of 203023103321 in words is "two hundred three billion, twenty-three million, one hundred three thousand, three hundred twenty-one".