103312403 has 2 divisors, whose sum is σ = 103312404. Its totient is φ = 103312402.

The previous prime is 103312393. The next prime is 103312441. The reversal of 103312403 is 304213301.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 103312403 - 2¹⁶ = 103246867 is a prime.

It is a super-2 number, since 2×103312403² = 21346905227268818, which contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (103312453) 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, 51656201 + 51656202.

It is an arithmetic number, because the mean of its divisors is an integer number (51656202).

Almost surely, 2^103312403 is an apocalyptic number.

103312403 is a deficient number, since it is larger than the sum of its proper divisors (1).

103312403 is an equidigital number, since it uses as much as digits as its factorization.

103312403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 103312403 is about 10164.2709035130. The cubic root of 103312403 is about 469.2282536204.

Adding to 103312403 its reverse (304213301), we get a palindrome (407525704).

The spelling of 103312403 in words is "one hundred three million, three hundred twelve thousand, four hundred three".