5310020861 has 2 divisors, whose sum is σ = 5310020862. Its totient is φ = 5310020860.

The previous prime is 5310020831. The next prime is 5310020887. The reversal of 5310020861 is 1680200135.

It is an a-pointer prime, because the next prime (5310020887) can be obtained adding 5310020861 to its sum of digits (26).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5211396100 + 98624761 = 72190^2 + 9931^2 .

It is a cyclic number.

It is not a de Polignac number, because 5310020861 - 2⁶ = 5310020797 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 5310020861.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5310020831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2655010430 + 2655010431.

It is an arithmetic number, because the mean of its divisors is an integer number (2655010431).

Almost surely, 2^5310020861 is an apocalyptic number.

It is an amenable number.

5310020861 is a deficient number, since it is larger than the sum of its proper divisors (1).

5310020861 is an equidigital number, since it uses as much as digits as its factorization.

5310020861 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 5310020861 is about 72869.8899477692. The cubic root of 5310020861 is about 1744.6115462781.

Adding to 5310020861 its reverse (1680200135), we get a palindrome (6990220996).

The spelling of 5310020861 in words is "five billion, three hundred ten million, twenty thousand, eight hundred sixty-one".