13221310203091 has 2 divisors, whose sum is σ = 13221310203092. Its totient is φ = 13221310203090.

The previous prime is 13221310203071. The next prime is 13221310203113. The reversal of 13221310203091 is 19030201312231.

13221310203091 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13221310203091 - 2⁹ = 13221310202579 is a prime.

It is a super-3 number, since 3×13221310203091³ (a number of 40 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (13221310203071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6610655101545 + 6610655101546.

It is an arithmetic number, because the mean of its divisors is an integer number (6610655101546).

Almost surely, 2^{13221310203091} is an apocalyptic number.

13221310203091 is a deficient number, since it is larger than the sum of its proper divisors (1).

13221310203091 is an equidigital number, since it uses as much as digits as its factorization.

13221310203091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 28.

The spelling of 13221310203091 in words is "thirteen trillion, two hundred twenty-one billion, three hundred ten million, two hundred three thousand, ninety-one".