3103210231221 has 4 divisors (see below), whose sum is σ = 4137613641632. Its totient is φ = 2068806820812.

The previous prime is 3103210231213. The next prime is 3103210231229. The reversal of 3103210231221 is 1221320123013.

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 an interprime number because it is at equal distance from previous prime (3103210231213) and next prime (3103210231229).

It is not a de Polignac number, because 3103210231221 - 2³ = 3103210231213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3103210231229) 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, 517201705201 + ... + 517201705206.

It is an arithmetic number, because the mean of its divisors is an integer number (1034403410408).

Almost surely, 2^{3103210231221} is an apocalyptic number.

It is an amenable number.

3103210231221 is a deficient number, since it is larger than the sum of its proper divisors (1034403410411).

3103210231221 is a wasteful number, since it uses less digits than its factorization.

3103210231221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1034403410410.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 3103210231221 its reverse (1221320123013), we get a palindrome (4324530354234).

The spelling of 3103210231221 in words is "three trillion, one hundred three billion, two hundred ten million, two hundred thirty-one thousand, two hundred twenty-one".