1203313043 has 2 divisors, whose sum is σ = 1203313044. Its totient is φ = 1203313042.

The previous prime is 1203312973. The next prime is 1203313049. The reversal of 1203313043 is 3403133021.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1203313043 - 2¹⁸ = 1203050899 is a prime.

It is not a weakly prime, because it can be changed into another prime (1203313049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 601656521 + 601656522.

It is an arithmetic number, because the mean of its divisors is an integer number (601656522).

Almost surely, 2^1203313043 is an apocalyptic number.

1203313043 is a deficient number, since it is larger than the sum of its proper divisors (1).

1203313043 is an equidigital number, since it uses as much as digits as its factorization.

1203313043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 20.

The square root of 1203313043 is about 34688.8028476049. The cubic root of 1203313043 is about 1063.6356243192.

Adding to 1203313043 its reverse (3403133021), we get a palindrome (4606446064).

The spelling of 1203313043 in words is "one billion, two hundred three million, three hundred thirteen thousand, forty-three".