2128601803 has 2 divisors, whose sum is σ = 2128601804. Its totient is φ = 2128601802.

The previous prime is 2128601737. The next prime is 2128601819. The reversal of 2128601803 is 3081068212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2128601803 - 2⁹ = 2128601291 is a prime.

It is not a weakly prime, because it can be changed into another prime (2128601203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1064300901 + 1064300902.

It is an arithmetic number, because the mean of its divisors is an integer number (1064300902).

Almost surely, 2^2128601803 is an apocalyptic number.

2128601803 is a deficient number, since it is larger than the sum of its proper divisors (1).

2128601803 is an equidigital number, since it uses as much as digits as its factorization.

2128601803 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4608, while the sum is 31.

The square root of 2128601803 is about 46136.7727848405. The cubic root of 2128601803 is about 1286.3667578520.

The spelling of 2128601803 in words is "two billion, one hundred twenty-eight million, six hundred one thousand, eight hundred three".