3123212103 has 24 divisors (see below), whose sum is σ = 5210923536. Its totient is φ = 1781510400.

The previous prime is 3123212051. The next prime is 3123212107. The reversal of 3123212103 is 3012123213.

It is not a de Polignac number, because 3123212103 - 2¹² = 3123208007 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3123212107) 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 23 ways as a sum of consecutive naturals, for example, 926188 + ... + 929553.

It is an arithmetic number, because the mean of its divisors is an integer number (217121814).

Almost surely, 2^3123212103 is an apocalyptic number.

3123212103 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

3123212103 is a deficient number, since it is larger than the sum of its proper divisors (2087711433).

3123212103 is a wasteful number, since it uses less digits than its factorization.

3123212103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1855775 (or 1855772 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 3123212103 is about 55885.7057126418. The cubic root of 3123212103 is about 1461.7299976475.

Adding to 3123212103 its reverse (3012123213), we get a palindrome (6135335316).

The spelling of 3123212103 in words is "three billion, one hundred twenty-three million, two hundred twelve thousand, one hundred three".