3103323121021 has 4 divisors (see below), whose sum is σ = 3104089188544. Its totient is φ = 3102557053500.

The previous prime is 3103323121007. The next prime is 3103323121081. The reversal of 3103323121021 is 1201213233013.

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.

It is a cyclic number.

It is not a de Polignac number, because 3103323121021 - 2²⁷ = 3103188903293 is a prime.

It is a super-2 number, since 2×3103323121021² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3103323120983 and 3103323121001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3103323121001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 383027685 + ... + 383035786.

It is an arithmetic number, because the mean of its divisors is an integer number (776022297136).

Almost surely, 2^{3103323121021} is an apocalyptic number.

It is an amenable number.

3103323121021 is a deficient number, since it is larger than the sum of its proper divisors (766067523).

3103323121021 is an equidigital number, since it uses as much as digits as its factorization.

3103323121021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 766067522.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 3103323121021 its reverse (1201213233013), we get a palindrome (4304536354034).

The spelling of 3103323121021 in words is "three trillion, one hundred three billion, three hundred twenty-three million, one hundred twenty-one thousand, twenty-one".