128316204168203 has 2 divisors, whose sum is σ = 128316204168204. Its totient is φ = 128316204168202.

The previous prime is 128316204168169. The next prime is 128316204168221. The reversal of 128316204168203 is 302861402613821.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 128316204168203 - 2²⁰ = 128316203119627 is a prime.

It is a super-2 number, since 2×128316204168203² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (128316204168293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64158102084101 + 64158102084102.

It is an arithmetic number, because the mean of its divisors is an integer number (64158102084102).

Almost surely, 2^{128316204168203} is an apocalyptic number.

128316204168203 is a deficient number, since it is larger than the sum of its proper divisors (1).

128316204168203 is an equidigital number, since it uses as much as digits as its factorization.

128316204168203 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 663552, while the sum is 47.

The spelling of 128316204168203 in words is "one hundred twenty-eight trillion, three hundred sixteen billion, two hundred four million, one hundred sixty-eight thousand, two hundred three".