1203320123 has 2 divisors, whose sum is σ = 1203320124. Its totient is φ = 1203320122.

The previous prime is 1203320093. The next prime is 1203320137. The reversal of 1203320123 is 3210233021.

It is a strong prime.

It is an emirp because it is prime and its reverse (3210233021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1203320123 - 2⁸ = 1203319867 is a prime.

It is not a weakly prime, because it can be changed into another prime (1203320023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 601660061 + 601660062.

It is an arithmetic number, because the mean of its divisors is an integer number (601660062).

Almost surely, 2^1203320123 is an apocalyptic number.

1203320123 is a deficient number, since it is larger than the sum of its proper divisors (1).

1203320123 is an equidigital number, since it uses as much as digits as its factorization.

1203320123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 1203320123 is about 34688.9048976759. The cubic root of 1203320123 is about 1063.6377103725.

Adding to 1203320123 its reverse (3210233021), we get a palindrome (4413553144).

The spelling of 1203320123 in words is "one billion, two hundred three million, three hundred twenty thousand, one hundred twenty-three".