128372550203 has 2 divisors, whose sum is σ = 128372550204. Its totient is φ = 128372550202.

The previous prime is 128372550181. The next prime is 128372550233. The reversal of 128372550203 is 302055273821.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 128372550203 - 2⁶ = 128372550139 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (128372550233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64186275101 + 64186275102.

It is an arithmetic number, because the mean of its divisors is an integer number (64186275102).

Almost surely, 2^128372550203 is an apocalyptic number.

128372550203 is a deficient number, since it is larger than the sum of its proper divisors (1).

128372550203 is an equidigital number, since it uses as much as digits as its factorization.

128372550203 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 100800, while the sum is 38.

The spelling of 128372550203 in words is "one hundred twenty-eight billion, three hundred seventy-two million, five hundred fifty thousand, two hundred three".