1303203113 has 2 divisors, whose sum is σ = 1303203114. Its totient is φ = 1303203112.

The previous prime is 1303203091. The next prime is 1303203127. The reversal of 1303203113 is 3113023031.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1096073449 + 207129664 = 33107^2 + 14392^2 .

It is a cyclic number.

It is not a de Polignac number, because 1303203113 - 2²⁰ = 1302154537 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1303203091 and 1303203100.

It is not a weakly prime, because it can be changed into another prime (1303203173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 651601556 + 651601557.

It is an arithmetic number, because the mean of its divisors is an integer number (651601557).

Almost surely, 2^1303203113 is an apocalyptic number.

It is an amenable number.

1303203113 is a deficient number, since it is larger than the sum of its proper divisors (1).

1303203113 is an equidigital number, since it uses as much as digits as its factorization.

1303203113 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 17.

The square root of 1303203113 is about 36099.9046120623. The cubic root of 1303203113 is about 1092.2885208743.

Adding to 1303203113 its reverse (3113023031), we get a palindrome (4416226144).

The spelling of 1303203113 in words is "one billion, three hundred three million, two hundred three thousand, one hundred thirteen".