1230105259 has 2 divisors, whose sum is σ = 1230105260. Its totient is φ = 1230105258.

The previous prime is 1230105187. The next prime is 1230105301. The reversal of 1230105259 is 9525010321.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1230105259 - 2¹¹ = 1230103211 is a prime.

It is not a weakly prime, because it can be changed into another prime (1230106259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 615052629 + 615052630.

It is an arithmetic number, because the mean of its divisors is an integer number (615052630).

Almost surely, 2^1230105259 is an apocalyptic number.

1230105259 is a deficient number, since it is larger than the sum of its proper divisors (1).

1230105259 is an equidigital number, since it uses as much as digits as its factorization.

1230105259 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2700, while the sum is 28.

The square root of 1230105259 is about 35072.8564419837. The cubic root of 1230105259 is about 1071.4718321893.

The spelling of 1230105259 in words is "one billion, two hundred thirty million, one hundred five thousand, two hundred fifty-nine".