128113939801 has 2 divisors, whose sum is σ = 128113939802. Its totient is φ = 128113939800.

The previous prime is 128113939783. The next prime is 128113939813. The reversal of 128113939801 is 108939311821.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 120884859225 + 7229080576 = 347685^2 + 85024^2 .

It is a cyclic number.

It is not a de Polignac number, because 128113939801 - 2¹³ = 128113931609 is a prime.

It is not a weakly prime, because it can be changed into another prime (128113939861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64056969900 + 64056969901.

It is an arithmetic number, because the mean of its divisors is an integer number (64056969901).

Almost surely, 2^128113939801 is an apocalyptic number.

It is an amenable number.

128113939801 is a deficient number, since it is larger than the sum of its proper divisors (1).

128113939801 is an equidigital number, since it uses as much as digits as its factorization.

128113939801 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 93312, while the sum is 46.

The spelling of 128113939801 in words is "one hundred twenty-eight billion, one hundred thirteen million, nine hundred thirty-nine thousand, eight hundred one".