3121065606 has 16 divisors (see below), whose sum is σ = 6257702448. Its totient is φ = 1037760000.

The previous prime is 3121065587. The next prime is 3121065667. The reversal of 3121065606 is 6065601213.

3121065606 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×3121065606² = 19482101033912294472, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 646195 + ... + 651006.

It is an arithmetic number, because the mean of its divisors is an integer number (391106403).

Almost surely, 2^3121065606 is an apocalyptic number.

3121065606 is an abundant number, since it is smaller than the sum of its proper divisors (3136636842).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3121065606 is a wasteful number, since it uses less digits than its factorization.

3121065606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1297607.

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 3121065606 is about 55866.4980645825. The cubic root of 3121065606 is about 1461.3950520828.

Adding to 3121065606 its reverse (6065601213), we get a palindrome (9186666819).

The spelling of 3121065606 in words is "three billion, one hundred twenty-one million, sixty-five thousand, six hundred six".