1128308651 has 2 divisors, whose sum is σ = 1128308652. Its totient is φ = 1128308650.

The previous prime is 1128308647. The next prime is 1128308653. The reversal of 1128308651 is 1568038211.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1128308651 - 2² = 1128308647 is a prime.

Together with 1128308653, 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 (1128308653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 564154325 + 564154326.

It is an arithmetic number, because the mean of its divisors is an integer number (564154326).

Almost surely, 2^1128308651 is an apocalyptic number.

1128308651 is a deficient number, since it is larger than the sum of its proper divisors (1).

1128308651 is an equidigital number, since it uses as much as digits as its factorization.

1128308651 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11520, while the sum is 35.

The square root of 1128308651 is about 33590.3059081039. The cubic root of 1128308651 is about 1041.0605093705.

The spelling of 1128308651 in words is "one billion, one hundred twenty-eight million, three hundred eight thousand, six hundred fifty-one".