1163523043 has 2 divisors, whose sum is σ = 1163523044. Its totient is φ = 1163523042.

The previous prime is 1163523037. The next prime is 1163523071. The reversal of 1163523043 is 3403253611.

It is an a-pointer prime, because the next prime (1163523071) can be obtained adding 1163523043 to its sum of digits (28).

It is a weak prime.

It is an emirp because it is prime and its reverse (3403253611) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1163523043 - 2²¹ = 1161425891 is a prime.

It is not a weakly prime, because it can be changed into another prime (1163523143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 581761521 + 581761522.

It is an arithmetic number, because the mean of its divisors is an integer number (581761522).

Almost surely, 2^1163523043 is an apocalyptic number.

1163523043 is a deficient number, since it is larger than the sum of its proper divisors (1).

1163523043 is an equidigital number, since it uses as much as digits as its factorization.

1163523043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6480, while the sum is 28.

The square root of 1163523043 is about 34110.4535736481. The cubic root of 1163523043 is about 1051.7802130036.

Adding to 1163523043 its reverse (3403253611), we get a palindrome (4566776654).

The spelling of 1163523043 in words is "one billion, one hundred sixty-three million, five hundred twenty-three thousand, forty-three".