1230857963 has 2 divisors, whose sum is σ = 1230857964. Its totient is φ = 1230857962.

The previous prime is 1230857959. The next prime is 1230857993. The reversal of 1230857963 is 3697580321.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1230857963 - 2² = 1230857959 is a prime.

It is a super-2 number, since 2×1230857963² = 3030022650161018738, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1230857993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 615428981 + 615428982.

It is an arithmetic number, because the mean of its divisors is an integer number (615428982).

Almost surely, 2^1230857963 is an apocalyptic number.

1230857963 is a deficient number, since it is larger than the sum of its proper divisors (1).

1230857963 is an equidigital number, since it uses as much as digits as its factorization.

1230857963 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 272160, while the sum is 44.

The square root of 1230857963 is about 35083.5853783504. The cubic root of 1230857963 is about 1071.6903329190.

The spelling of 1230857963 in words is "one billion, two hundred thirty million, eight hundred fifty-seven thousand, nine hundred sixty-three".