115201321 has 2 divisors, whose sum is σ = 115201322. Its totient is φ = 115201320.

The previous prime is 115201309. The next prime is 115201327. The reversal of 115201321 is 123102511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 89038096 + 26163225 = 9436^2 + 5115^2 .

It is a cyclic number.

It is not a de Polignac number, because 115201321 - 2²⁵ = 81646889 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 115201295 and 115201304.

It is not a weakly prime, because it can be changed into another prime (115201327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57600660 + 57600661.

It is an arithmetic number, because the mean of its divisors is an integer number (57600661).

Almost surely, 2^115201321 is an apocalyptic number.

It is an amenable number.

115201321 is a deficient number, since it is larger than the sum of its proper divisors (1).

115201321 is an equidigital number, since it uses as much as digits as its factorization.

115201321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 60, while the sum is 16.

The square root of 115201321 is about 10733.1878302767. The cubic root of 115201321 is about 486.5780194973.

Adding to 115201321 its reverse (123102511), we get a palindrome (238303832).

The spelling of 115201321 in words is "one hundred fifteen million, two hundred one thousand, three hundred twenty-one".