103021073 has 2 divisors, whose sum is σ = 103021074. Its totient is φ = 103021072.

The previous prime is 103021033. The next prime is 103021099. The reversal of 103021073 is 370120301.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 95902849 + 7118224 = 9793^2 + 2668^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-103021073 is a prime.

It is a super-2 number, since 2×103021073² = 21226682964142658, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (103021013) 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, 51510536 + 51510537.

It is an arithmetic number, because the mean of its divisors is an integer number (51510537).

Almost surely, 2^103021073 is an apocalyptic number.

It is an amenable number.

103021073 is a deficient number, since it is larger than the sum of its proper divisors (1).

103021073 is an equidigital number, since it uses as much as digits as its factorization.

103021073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 126, while the sum is 17.

The square root of 103021073 is about 10149.9297041901. The cubic root of 103021073 is about 468.7867804502.

Adding to 103021073 its reverse (370120301), we get a palindrome (473141374).

The spelling of 103021073 in words is "one hundred three million, twenty-one thousand, seventy-three".