1297427203 has 2 divisors, whose sum is σ = 1297427204. Its totient is φ = 1297427202.

The previous prime is 1297427189. The next prime is 1297427207. The reversal of 1297427203 is 3027247921.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1297427203 - 2¹⁷ = 1297296131 is a prime.

It is not a weakly prime, because it can be changed into another prime (1297427207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 648713601 + 648713602.

It is an arithmetic number, because the mean of its divisors is an integer number (648713602).

Almost surely, 2^1297427203 is an apocalyptic number.

1297427203 is a deficient number, since it is larger than the sum of its proper divisors (1).

1297427203 is an equidigital number, since it uses as much as digits as its factorization.

1297427203 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 42336, while the sum is 37.

The square root of 1297427203 is about 36019.8168096397. The cubic root of 1297427203 is about 1090.6724249216.

The spelling of 1297427203 in words is "one billion, two hundred ninety-seven million, four hundred twenty-seven thousand, two hundred three".