13220767741 has 2 divisors, whose sum is σ = 13220767742. Its totient is φ = 13220767740.

The previous prime is 13220767673. The next prime is 13220767801. The reversal of 13220767741 is 14776702231.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9329628100 + 3891139641 = 96590^2 + 62379^2 .

It is a cyclic number.

It is not a de Polignac number, because 13220767741 - 2¹¹ = 13220765693 is a prime.

It is a super-2 number, since 2×13220767741² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13220767694 and 13220767703.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13220747741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6610383870 + 6610383871.

It is an arithmetic number, because the mean of its divisors is an integer number (6610383871).

Almost surely, 2^13220767741 is an apocalyptic number.

It is an amenable number.

13220767741 is a deficient number, since it is larger than the sum of its proper divisors (1).

13220767741 is an equidigital number, since it uses as much as digits as its factorization.

13220767741 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 98784, while the sum is 40.

The spelling of 13220767741 in words is "thirteen billion, two hundred twenty million, seven hundred sixty-seven thousand, seven hundred forty-one".