1303399133 has 2 divisors, whose sum is σ = 1303399134. Its totient is φ = 1303399132.

The previous prime is 1303399103. The next prime is 1303399147. The reversal of 1303399133 is 3319933031.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1134477124 + 168922009 = 33682^2 + 12997^2 .

It is a cyclic number.

It is not a de Polignac number, because 1303399133 - 2¹⁶ = 1303333597 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1303399093 and 1303399102.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1303399103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 651699566 + 651699567.

It is an arithmetic number, because the mean of its divisors is an integer number (651699567).

Almost surely, 2^1303399133 is an apocalyptic number.

It is an amenable number.

1303399133 is a deficient number, since it is larger than the sum of its proper divisors (1).

1303399133 is an equidigital number, since it uses as much as digits as its factorization.

1303399133 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19683, while the sum is 35.

The square root of 1303399133 is about 36102.6194756004. The cubic root of 1303399133 is about 1092.3432832926.

The spelling of 1303399133 in words is "one billion, three hundred three million, three hundred ninety-nine thousand, one hundred thirty-three".