10103381 has 2 divisors, whose sum is σ = 10103382. Its totient is φ = 10103380.

The previous prime is 10103377. The next prime is 10103393. The reversal of 10103381 is 18330101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7672900 + 2430481 = 2770^2 + 1559^2 .

It is an emirp because it is prime and its reverse (18330101) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10103381 - 2² = 10103377 is a prime.

It is a super-2 number, since 2×10103381² = 204156615262322, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is equal to p₆₇₁₀₂₁ and since 10103381 and 671021 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10103311) 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, 5051690 + 5051691.

It is an arithmetic number, because the mean of its divisors is an integer number (5051691).

Almost surely, 2^10103381 is an apocalyptic number.

It is an amenable number.

10103381 is a deficient number, since it is larger than the sum of its proper divisors (1).

10103381 is an equidigital number, since it uses as much as digits as its factorization.

10103381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 10103381 is about 3178.5816019099. The cubic root of 10103381 is about 216.1833505497.

Adding to 10103381 its reverse (18330101), we get a palindrome (28433482).

The spelling of 10103381 in words is "ten million, one hundred three thousand, three hundred eighty-one".