1303003123 has 2 divisors, whose sum is σ = 1303003124. Its totient is φ = 1303003122.

The previous prime is 1303003099. The next prime is 1303003171. The reversal of 1303003123 is 3213003031.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1303003123 - 2²¹ = 1300905971 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1303003097 and 1303003106.

It is not a weakly prime, because it can be changed into another prime (1303003193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 651501561 + 651501562.

It is an arithmetic number, because the mean of its divisors is an integer number (651501562).

Almost surely, 2^1303003123 is an apocalyptic number.

1303003123 is a deficient number, since it is larger than the sum of its proper divisors (1).

1303003123 is an equidigital number, since it uses as much as digits as its factorization.

1303003123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 162, while the sum is 16.

The square root of 1303003123 is about 36097.1345538673. The cubic root of 1303003123 is about 1092.2326436913.

Adding to 1303003123 its reverse (3213003031), we get a palindrome (4516006154).

The spelling of 1303003123 in words is "one billion, three hundred three million, three thousand, one hundred twenty-three".