1201303123 has 2 divisors, whose sum is σ = 1201303124. Its totient is φ = 1201303122.

The previous prime is 1201303093. The next prime is 1201303171. The reversal of 1201303123 is 3213031021.

It is a weak prime.

It is an emirp because it is prime and its reverse (3213031021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1201303123 - 2⁵ = 1201303091 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1201303097 and 1201303106.

It is not a weakly prime, because it can be changed into another prime (1201307123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600651561 + 600651562.

It is an arithmetic number, because the mean of its divisors is an integer number (600651562).

Almost surely, 2^1201303123 is an apocalyptic number.

1201303123 is a deficient number, since it is larger than the sum of its proper divisors (1).

1201303123 is an equidigital number, since it uses as much as digits as its factorization.

1201303123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 1201303123 is about 34659.8200081882. The cubic root of 1201303123 is about 1063.0430897009.

Adding to 1201303123 its reverse (3213031021), we get a palindrome (4414334144).

The spelling of 1201303123 in words is "one billion, two hundred one million, three hundred three thousand, one hundred twenty-three".