3121306606 has 16 divisors (see below), whose sum is σ = 5245637040. Its totient is φ = 1380430080.

The previous prime is 3121306603. The next prime is 3121306631. The reversal of 3121306606 is 6066031213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3121306603) 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 7 ways as a sum of consecutive naturals, for example, 1916451 + ... + 1918078.

It is an arithmetic number, because the mean of its divisors is an integer number (327852315).

Almost surely, 2^3121306606 is an apocalyptic number.

3121306606 is a deficient number, since it is larger than the sum of its proper divisors (2124330434).

3121306606 is a wasteful number, since it uses less digits than its factorization.

3121306606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3834579.

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 3121306606 is about 55868.6549506966. The cubic root of 3121306606 is about 1461.4326660676.

Adding to 3121306606 its reverse (6066031213), we get a palindrome (9187337819).

The spelling of 3121306606 in words is "three billion, one hundred twenty-one million, three hundred six thousand, six hundred six".