7211016731 has 2 divisors, whose sum is σ = 7211016732. Its totient is φ = 7211016730.

The previous prime is 7211016679. The next prime is 7211016773. The reversal of 7211016731 is 1376101127.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7211016731 is a prime.

It is a super-2 number, since 2×7211016731² (a number of 21 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 7211016694 and 7211016703.

It is not a weakly prime, because it can be changed into another prime (7211010731) 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 as a sum of consecutive naturals, namely, 3605508365 + 3605508366.

It is an arithmetic number, because the mean of its divisors is an integer number (3605508366).

Almost surely, 2^7211016731 is an apocalyptic number.

7211016731 is a deficient number, since it is larger than the sum of its proper divisors (1).

7211016731 is an equidigital number, since it uses as much as digits as its factorization.

7211016731 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1764, while the sum is 29.

The square root of 7211016731 is about 84917.7056390480. The cubic root of 7211016731 is about 1931.9631318452.

Adding to 7211016731 its reverse (1376101127), we get a palindrome (8587117858).

The spelling of 7211016731 in words is "seven billion, two hundred eleven million, sixteen thousand, seven hundred thirty-one".