3121108 has 12 divisors (see below), whose sum is σ = 5488000. Its totient is φ = 1553112.

The previous prime is 3121091. The next prime is 3121109. The reversal of 3121108 is 8011213.

It is a junction number, because it is equal to n+sod(n) for n = 3121091 and 3121100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3121109) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 858 + ... + 2641.

Almost surely, 2^3121108 is an apocalyptic number.

It is an amenable number.

3121108 is a deficient number, since it is larger than the sum of its proper divisors (2366892).

3121108 is a wasteful number, since it uses less digits than its factorization.

3121108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3726 (or 3724 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

The square root of 3121108 is about 1766.6657861633. The cubic root of 3121108 is about 146.1401668851.

It can be divided in two parts, 312 and 1108, that multiplied together give a triangular number (345696 = T₈₃₁).

The spelling of 3121108 in words is "three million, one hundred twenty-one thousand, one hundred eight".