3031600061 has 18 divisors (see below), whose sum is σ = 3610583262. Its totient is φ = 2538007920.

The previous prime is 3031600051. The next prime is 3031600067. The reversal of 3031600061 is 1600061303.

It can be written as a sum of positive squares in only one way, i.e., 2587655161 + 443944900 = 50869^2 + 21070^2 .

It is not a de Polignac number, because 3031600061 - 2¹⁸ = 3031337917 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3031600067) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 73871 + ... + 107331.

It is an arithmetic number, because the mean of its divisors is an integer number (200587959).

Almost surely, 2^3031600061 is an apocalyptic number.

It is an amenable number.

3031600061 is a deficient number, since it is larger than the sum of its proper divisors (578983201).

3031600061 is an equidigital number, since it uses as much as digits as its factorization.

3031600061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33561 (or 33511 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 20.

The square root of 3031600061 is about 55059.9678623226. The cubic root of 3031600061 is about 1447.2958019160.

Adding to 3031600061 its reverse (1600061303), we get a palindrome (4631661364).

The spelling of 3031600061 in words is "three billion, thirty-one million, six hundred thousand, sixty-one".