1180251113 has 2 divisors, whose sum is σ = 1180251114. Its totient is φ = 1180251112.

The previous prime is 1180251109. The next prime is 1180251151. The reversal of 1180251113 is 3111520811.

1180251113 = 24292² + 24293².

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 590149849 + 590101264 = 24293^2 + 24292^2 .

It is a cyclic number.

It is not a de Polignac number, because 1180251113 - 2² = 1180251109 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1180251103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 590125556 + 590125557.

It is an arithmetic number, because the mean of its divisors is an integer number (590125557).

Almost surely, 2^1180251113 is an apocalyptic number.

1180251113 is the 24293-rd centered square number.

It is an amenable number.

1180251113 is a deficient number, since it is larger than the sum of its proper divisors (1).

1180251113 is an equidigital number, since it uses as much as digits as its factorization.

1180251113 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 240, while the sum is 23.

The square root of 1180251113 is about 34354.7829712254. The cubic root of 1180251113 is about 1056.7967594287.

Adding to 1180251113 its reverse (3111520811), we get a palindrome (4291771924).

The spelling of 1180251113 in words is "one billion, one hundred eighty million, two hundred fifty-one thousand, one hundred thirteen".