1230300091 has 2 divisors, whose sum is σ = 1230300092. Its totient is φ = 1230300090.

The previous prime is 1230299977. The next prime is 1230300121. The reversal of 1230300091 is 1900030321.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1230300091 - 2⁷ = 1230299963 is a prime.

It is not a weakly prime, because it can be changed into another prime (1230000091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 615150045 + 615150046.

It is an arithmetic number, because the mean of its divisors is an integer number (615150046).

Almost surely, 2^1230300091 is an apocalyptic number.

1230300091 is a deficient number, since it is larger than the sum of its proper divisors (1).

1230300091 is an equidigital number, since it uses as much as digits as its factorization.

1230300091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 162, while the sum is 19.

The square root of 1230300091 is about 35075.6338645505. The cubic root of 1230300091 is about 1071.5283980748.

The spelling of 1230300091 in words is "one billion, two hundred thirty million, three hundred thousand, ninety-one".