128030051 has 2 divisors, whose sum is σ = 128030052. Its totient is φ = 128030050.

The previous prime is 128029991. The next prime is 128030053. The reversal of 128030051 is 150030821.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 128030051 - 2⁶ = 128029987 is a prime.

Together with 128030053, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (128030053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64015025 + 64015026.

It is an arithmetic number, because the mean of its divisors is an integer number (64015026).

Almost surely, 2^128030051 is an apocalyptic number.

128030051 is a deficient number, since it is larger than the sum of its proper divisors (1).

128030051 is an equidigital number, since it uses as much as digits as its factorization.

128030051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 128030051 is about 11315.0365001621. The cubic root of 128030051 is about 504.0078563380.

Adding to 128030051 its reverse (150030821), we get a palindrome (278060872).

The spelling of 128030051 in words is "one hundred twenty-eight million, thirty thousand, fifty-one".