1163500231 has 2 divisors, whose sum is σ = 1163500232. Its totient is φ = 1163500230.

The previous prime is 1163500201. The next prime is 1163500243. The reversal of 1163500231 is 1320053611.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1163500231 - 2⁵ = 1163500199 is a prime.

It is a super-2 number, since 2×1163500231² = 2707465575074106722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1163500201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 581750115 + 581750116.

It is an arithmetic number, because the mean of its divisors is an integer number (581750116).

Almost surely, 2^1163500231 is an apocalyptic number.

1163500231 is a deficient number, since it is larger than the sum of its proper divisors (1).

1163500231 is an equidigital number, since it uses as much as digits as its factorization.

1163500231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 1163500231 is about 34110.1191877132. The cubic root of 1163500231 is about 1051.7733392343.

Adding to 1163500231 its reverse (1320053611), we get a palindrome (2483553842).

The spelling of 1163500231 in words is "one billion, one hundred sixty-three million, five hundred thousand, two hundred thirty-one".