3103140221 has 4 divisors (see below), whose sum is σ = 3117055872. Its totient is φ = 3089224572.

The previous prime is 3103140191. The next prime is 3103140239. The reversal of 3103140221 is 1220413013.

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: 1220413013 = 2339 ⋅521767.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3103140221 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3103140221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3103140281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6957491 + ... + 6957936.

It is an arithmetic number, because the mean of its divisors is an integer number (779263968).

Almost surely, 2^3103140221 is an apocalyptic number.

It is an amenable number.

3103140221 is a deficient number, since it is larger than the sum of its proper divisors (13915651).

3103140221 is a wasteful number, since it uses less digits than its factorization.

3103140221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13915650.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 3103140221 is about 55705.8365074971. The cubic root of 3103140221 is about 1458.5919089693.

Adding to 3103140221 its reverse (1220413013), we get a palindrome (4323553234).

The spelling of 3103140221 in words is "three billion, one hundred three million, one hundred forty thousand, two hundred twenty-one".