103420073 has 2 divisors, whose sum is σ = 103420074. Its totient is φ = 103420072.

The previous prime is 103420043. The next prime is 103420099. The reversal of 103420073 is 370024301.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 60031504 + 43388569 = 7748^2 + 6587^2 .

It is a cyclic number.

It is not a de Polignac number, because 103420073 - 2¹⁰ = 103419049 is a prime.

It is a super-2 number, since 2×103420073² = 21391422998650658, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (103420033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51710036 + 51710037.

It is an arithmetic number, because the mean of its divisors is an integer number (51710037).

Almost surely, 2^103420073 is an apocalyptic number.

It is an amenable number.

103420073 is a deficient number, since it is larger than the sum of its proper divisors (1).

103420073 is an equidigital number, since it uses as much as digits as its factorization.

103420073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 504, while the sum is 20.

The square root of 103420073 is about 10169.5660182724. The cubic root of 103420073 is about 469.3912036111.

Adding to 103420073 its reverse (370024301), we get a palindrome (473444374).

The spelling of 103420073 in words is "one hundred three million, four hundred twenty thousand, seventy-three".