116401121 has 2 divisors, whose sum is σ = 116401122. Its totient is φ = 116401120.

The previous prime is 116401111. The next prime is 116401141. The reversal of 116401121 is 121104611.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 116208400 + 192721 = 10780^2 + 439^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-116401121 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 116401121.

It is not a weakly prime, because it can be changed into another prime (116401111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58200560 + 58200561.

It is an arithmetic number, because the mean of its divisors is an integer number (58200561).

Almost surely, 2^116401121 is an apocalyptic number.

It is an amenable number.

116401121 is a deficient number, since it is larger than the sum of its proper divisors (1).

116401121 is an equidigital number, since it uses as much as digits as its factorization.

116401121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 17.

The square root of 116401121 is about 10788.9351189077. The cubic root of 116401121 is about 488.2613949976.

Adding to 116401121 its reverse (121104611), we get a palindrome (237505732).

The spelling of 116401121 in words is "one hundred sixteen million, four hundred one thousand, one hundred twenty-one".