102313481 has 2 divisors, whose sum is σ = 102313482. Its totient is φ = 102313480.

The previous prime is 102313441. The next prime is 102313529. The reversal of 102313481 is 184313201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 102313225 + 256 = 10115^2 + 16^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102313481 is a prime.

It is a super-2 number, since 2×102313481² = 20936096788674722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (102313441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51156740 + 51156741.

It is an arithmetic number, because the mean of its divisors is an integer number (51156741).

Almost surely, 2^102313481 is an apocalyptic number.

It is an amenable number.

102313481 is a deficient number, since it is larger than the sum of its proper divisors (1).

102313481 is an equidigital number, since it uses as much as digits as its factorization.

102313481 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 102313481 is about 10115.0126544656. The cubic root of 102313481 is about 467.7110389611.

Adding to 102313481 its reverse (184313201), we get a palindrome (286626682).

The spelling of 102313481 in words is "one hundred two million, three hundred thirteen thousand, four hundred eighty-one".