1163203043 has 2 divisors, whose sum is σ = 1163203044. Its totient is φ = 1163203042.

The previous prime is 1163202991. The next prime is 1163203051. The reversal of 1163203043 is 3403023611.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1163203043 - 2²⁴ = 1146425827 is a prime.

It is not a weakly prime, because it can be changed into another prime (1163203073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 581601521 + 581601522.

It is an arithmetic number, because the mean of its divisors is an integer number (581601522).

Almost surely, 2^1163203043 is an apocalyptic number.

1163203043 is a deficient number, since it is larger than the sum of its proper divisors (1).

1163203043 is an equidigital number, since it uses as much as digits as its factorization.

1163203043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 23.

The square root of 1163203043 is about 34105.7626069261. The cubic root of 1163203043 is about 1051.6837815864.

Adding to 1163203043 its reverse (3403023611), we get a palindrome (4566226654).

The spelling of 1163203043 in words is "one billion, one hundred sixty-three million, two hundred three thousand, forty-three".