20101085448313 has 2 divisors, whose sum is σ = 20101085448314. Its totient is φ = 20101085448312.

The previous prime is 20101085448299. The next prime is 20101085448317. The reversal of 20101085448313 is 31384458010102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19439210456064 + 661874992249 = 4408992^2 + 813557^2 .

It is a cyclic number.

It is not a de Polignac number, because 20101085448313 - 2⁹ = 20101085447801 is a prime.

It is not a weakly prime, because it can be changed into another prime (20101085448317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10050542724156 + 10050542724157.

It is an arithmetic number, because the mean of its divisors is an integer number (10050542724157).

Almost surely, 2^{20101085448313} is an apocalyptic number.

It is an amenable number.

20101085448313 is a deficient number, since it is larger than the sum of its proper divisors (1).

20101085448313 is an equidigital number, since it uses as much as digits as its factorization.

20101085448313 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 92160, while the sum is 40.

The spelling of 20101085448313 in words is "twenty trillion, one hundred one billion, eighty-five million, four hundred forty-eight thousand, three hundred thirteen".