1230490123 has 2 divisors, whose sum is σ = 1230490124. Its totient is φ = 1230490122.

The previous prime is 1230490081. The next prime is 1230490147. The reversal of 1230490123 is 3210940321.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1230490123 is a prime.

It is not a weakly prime, because it can be changed into another prime (1230490153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 615245061 + 615245062.

It is an arithmetic number, because the mean of its divisors is an integer number (615245062).

Almost surely, 2^1230490123 is an apocalyptic number.

1230490123 is a deficient number, since it is larger than the sum of its proper divisors (1).

1230490123 is an equidigital number, since it uses as much as digits as its factorization.

1230490123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 1230490123 is about 35078.3426489907. The cubic root of 1230490123 is about 1071.5835646159.

The spelling of 1230490123 in words is "one billion, two hundred thirty million, four hundred ninety thousand, one hundred twenty-three".