3121244103 has 48 divisors (see below), whose sum is σ = 4468860000. Its totient is φ = 1935214848.

The previous prime is 3121244099. The next prime is 3121244117. The reversal of 3121244103 is 3014421213.

It is not a de Polignac number, because 3121244103 - 2² = 3121244099 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3121244103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3121244143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 20947873 + ... + 20948021.

It is an arithmetic number, because the mean of its divisors is an integer number (93101250).

Almost surely, 2^3121244103 is an apocalyptic number.

3121244103 is a deficient number, since it is larger than the sum of its proper divisors (1347615897).

3121244103 is a wasteful number, since it uses less digits than its factorization.

3121244103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 384 (or 337 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 3121244103 is about 55868.0955734129. The cubic root of 3121244103 is about 1461.4229111212.

Adding to 3121244103 its reverse (3014421213), we get a palindrome (6135665316).

The spelling of 3121244103 in words is "three billion, one hundred twenty-one million, two hundred forty-four thousand, one hundred three".