1161360331 has 2 divisors, whose sum is σ = 1161360332. Its totient is φ = 1161360330.

The previous prime is 1161360311. The next prime is 1161360337. The reversal of 1161360331 is 1330631611.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (1330631611) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1161360331 - 2⁷ = 1161360203 is a prime.

It is a super-2 number, since 2×1161360331² = 2697515636840859122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1161360296 and 1161360305.

It is not a weakly prime, because it can be changed into another prime (1161360337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 580680165 + 580680166.

It is an arithmetic number, because the mean of its divisors is an integer number (580680166).

Almost surely, 2^1161360331 is an apocalyptic number.

1161360331 is a deficient number, since it is larger than the sum of its proper divisors (1).

1161360331 is an equidigital number, since it uses as much as digits as its factorization.

1161360331 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 972, while the sum is 25.

The square root of 1161360331 is about 34078.7372271920. The cubic root of 1161360331 is about 1051.1281392487.

Adding to 1161360331 its reverse (1330631611), we get a palindrome (2491991942).

The spelling of 1161360331 in words is "one billion, one hundred sixty-one million, three hundred sixty thousand, three hundred thirty-one".