128040520105093 has 2 divisors, whose sum is σ = 128040520105094. Its totient is φ = 128040520105092.

The previous prime is 128040520105039. The next prime is 128040520105097. The reversal of 128040520105093 is 390501025040821.

It is a happy number.

Together with previous prime (128040520105039) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 127437050595204 + 603469509889 = 11288802^2 + 776833^2 .

It is a cyclic number.

It is not a de Polignac number, because 128040520105093 - 2²⁵ = 128040486550661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (128040520105097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64020260052546 + 64020260052547.

It is an arithmetic number, because the mean of its divisors is an integer number (64020260052547).

Almost surely, 2^{128040520105093} is an apocalyptic number.

It is an amenable number.

128040520105093 is a deficient number, since it is larger than the sum of its proper divisors (1).

128040520105093 is an equidigital number, since it uses as much as digits as its factorization.

128040520105093 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 86400, while the sum is 40.

The spelling of 128040520105093 in words is "one hundred twenty-eight trillion, forty billion, five hundred twenty million, one hundred five thousand, ninety-three".