115102321 has 2 divisors, whose sum is σ = 115102322. Its totient is φ = 115102320.

The previous prime is 115102319. The next prime is 115102343. The reversal of 115102321 is 123201511.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 66994225 + 48108096 = 8185^2 + 6936^2 .

It is a cyclic number.

It is not a de Polignac number, because 115102321 - 2¹ = 115102319 is a prime.

Together with 115102319, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 115102295 and 115102304.

It is not a weakly prime, because it can be changed into another prime (115102021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57551160 + 57551161.

It is an arithmetic number, because the mean of its divisors is an integer number (57551161).

Almost surely, 2^115102321 is an apocalyptic number.

It is an amenable number.

115102321 is a deficient number, since it is larger than the sum of its proper divisors (1).

115102321 is an equidigital number, since it uses as much as digits as its factorization.

115102321 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 115102321 is about 10728.5749752705. The cubic root of 115102321 is about 486.4385968211.

Adding to 115102321 its reverse (123201511), we get a palindrome (238303832).

It can be divided in two parts, 11510 and 2321, that added together give a palindrome (13831).

The spelling of 115102321 in words is "one hundred fifteen million, one hundred two thousand, three hundred twenty-one".