6722313131 has 2 divisors, whose sum is σ = 6722313132. Its totient is φ = 6722313130.

The previous prime is 6722313127. The next prime is 6722313139. The reversal of 6722313131 is 1313132276.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6722313131 - 2² = 6722313127 is a prime.

It is a super-3 number, since 3×6722313131³ (a number of 30 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 6722313094 and 6722313103.

It is not a weakly prime, because it can be changed into another prime (6722313139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3361156565 + 3361156566.

It is an arithmetic number, because the mean of its divisors is an integer number (3361156566).

Almost surely, 2^6722313131 is an apocalyptic number.

6722313131 is a deficient number, since it is larger than the sum of its proper divisors (1).

6722313131 is an equidigital number, since it uses as much as digits as its factorization.

6722313131 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4536, while the sum is 29.

The square root of 6722313131 is about 81989.7135682276. The cubic root of 6722313131 is about 1887.2940880062.

The spelling of 6722313131 in words is "six billion, seven hundred twenty-two million, three hundred thirteen thousand, one hundred thirty-one".