102541321 has 2 divisors, whose sum is σ = 102541322. Its totient is φ = 102541320.

The previous prime is 102541279. The next prime is 102541339. The reversal of 102541321 is 123145201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 82156096 + 20385225 = 9064^2 + 4515^2 .

It is a cyclic number.

It is not a de Polignac number, because 102541321 - 2⁷ = 102541193 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (102541721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51270660 + 51270661.

It is an arithmetic number, because the mean of its divisors is an integer number (51270661).

Almost surely, 2^102541321 is an apocalyptic number.

It is an amenable number.

102541321 is a deficient number, since it is larger than the sum of its proper divisors (1).

102541321 is an equidigital number, since it uses as much as digits as its factorization.

102541321 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 19.

The square root of 102541321 is about 10126.2688587653. The cubic root of 102541321 is about 468.0579605936.

Adding to 102541321 its reverse (123145201), we get a palindrome (225686522).

The spelling of 102541321 in words is "one hundred two million, five hundred forty-one thousand, three hundred twenty-one".