115342321 has 4 divisors (see below), whose sum is σ = 115369444. Its totient is φ = 115315200.

The previous prime is 115342319. The next prime is 115342343. The reversal of 115342321 is 123243511.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 123243511 = 701 ⋅175811.

It can be written as a sum of positive squares in 2 ways, for example, as 4145296 + 111197025 = 2036^2 + 10545^2 .

It is a cyclic number.

It is not a de Polignac number, because 115342321 - 2¹ = 115342319 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 115342292 and 115342301.

It is not an unprimeable number, because it can be changed into a prime (115342301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5640 + ... + 16201.

It is an arithmetic number, because the mean of its divisors is an integer number (28842361).

Almost surely, 2^115342321 is an apocalyptic number.

It is an amenable number.

115342321 is a deficient number, since it is larger than the sum of its proper divisors (27123).

115342321 is an equidigital number, since it uses as much as digits as its factorization.

115342321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27122.

The product of its digits is 720, while the sum is 22.

The square root of 115342321 is about 10739.7542336871. The cubic root of 115342321 is about 486.7764533595.

Adding to 115342321 its reverse (123243511), we get a palindrome (238585832).

The spelling of 115342321 in words is "one hundred fifteen million, three hundred forty-two thousand, three hundred twenty-one".