1230215663 has 2 divisors, whose sum is σ = 1230215664. Its totient is φ = 1230215662.

The previous prime is 1230215633. The next prime is 1230215671. The reversal of 1230215663 is 3665120321.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1230215663 - 2²² = 1226021359 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1230215603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 615107831 + 615107832.

It is an arithmetic number, because the mean of its divisors is an integer number (615107832).

Almost surely, 2^1230215663 is an apocalyptic number.

1230215663 is a deficient number, since it is larger than the sum of its proper divisors (1).

1230215663 is an equidigital number, since it uses as much as digits as its factorization.

1230215663 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 1230215663 is about 35074.4303303703. The cubic root of 1230215663 is about 1071.5038866921.

Adding to 1230215663 its reverse (3665120321), we get a palindrome (4895335984).

The spelling of 1230215663 in words is "one billion, two hundred thirty million, two hundred fifteen thousand, six hundred sixty-three".