103403281 has 2 divisors, whose sum is σ = 103403282. Its totient is φ = 103403280.

The previous prime is 103403257. The next prime is 103403291. The reversal of 103403281 is 182304301.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 57380625 + 46022656 = 7575^2 + 6784^2 .

It is an emirp because it is prime and its reverse (182304301) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 103403281 - 2²¹ = 101306129 is a prime.

It is a super-2 number, since 2×103403281² = 21384477043129922, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (103403221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51701640 + 51701641.

It is an arithmetic number, because the mean of its divisors is an integer number (51701641).

Almost surely, 2^103403281 is an apocalyptic number.

It is an amenable number.

103403281 is a deficient number, since it is larger than the sum of its proper divisors (1).

103403281 is an equidigital number, since it uses as much as digits as its factorization.

103403281 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 22.

The square root of 103403281 is about 10168.7403841380. The cubic root of 103403281 is about 469.3657976994.

Adding to 103403281 its reverse (182304301), we get a palindrome (285707582).

It can be divided in two parts, 103403 and 281, that added together give a square (103684 = 322²).

The spelling of 103403281 in words is "one hundred three million, four hundred three thousand, two hundred eighty-one".