103312393 has 2 divisors, whose sum is σ = 103312394. Its totient is φ = 103312392.

The previous prime is 103312381. The next prime is 103312403. The reversal of 103312393 is 393213301.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 100962304 + 2350089 = 10048^2 + 1533^2 .

It is a cyclic number.

It is not a de Polignac number, because 103312393 - 2⁵ = 103312361 is a prime.

It is not a weakly prime, because it can be changed into another prime (103312303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51656196 + 51656197.

It is an arithmetic number, because the mean of its divisors is an integer number (51656197).

Almost surely, 2^103312393 is an apocalyptic number.

It is an amenable number.

103312393 is a deficient number, since it is larger than the sum of its proper divisors (1).

103312393 is an equidigital number, since it uses as much as digits as its factorization.

103312393 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1458, while the sum is 25.

The square root of 103312393 is about 10164.2704115937. The cubic root of 103312393 is about 469.2282384810.

Adding to 103312393 its reverse (393213301), we get a palindrome (496525694).

The spelling of 103312393 in words is "one hundred three million, three hundred twelve thousand, three hundred ninety-three".