4031020061 has 2 divisors, whose sum is σ = 4031020062. Its totient is φ = 4031020060.

The previous prime is 4031020003. The next prime is 4031020111. The reversal of 4031020061 is 1600201304.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2095899961 + 1935120100 = 45781^2 + 43990^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4031020061 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4031020261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2015510030 + 2015510031.

It is an arithmetic number, because the mean of its divisors is an integer number (2015510031).

Almost surely, 2^4031020061 is an apocalyptic number.

It is an amenable number.

4031020061 is a deficient number, since it is larger than the sum of its proper divisors (1).

4031020061 is an equidigital number, since it uses as much as digits as its factorization.

4031020061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 4031020061 is about 63490.3147023229. The cubic root of 4031020061 is about 1591.4939298095.

Adding to 4031020061 its reverse (1600201304), we get a palindrome (5631221365).

The spelling of 4031020061 in words is "four billion, thirty-one million, twenty thousand, sixty-one".