103381 has 4 divisors (see below), whose sum is σ = 104992. Its totient is φ = 101772.

The previous prime is 103357. The next prime is 103387. The reversal of 103381 is 183301.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 103381 - 2⁵ = 103349 is a prime.

It is a super-2 number, since 2×103381² = 21375262322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103387) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 705 + ... + 838.

It is an arithmetic number, because the mean of its divisors is an integer number (26248).

2¹⁰³³⁸¹ is an apocalyptic number.

It is an amenable number.

103381 is a deficient number, since it is larger than the sum of its proper divisors (1611).

103381 is an equidigital number, since it uses as much as digits as its factorization.

103381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1610.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 103381 is about 321.5291588643. The cubic root of 103381 is about 46.9332082810.

Adding to 103381 its reverse (183301), we get a palindrome (286682).

It can be divided in two parts, 103 and 381, that added together give a palindrome (484).

The spelling of 103381 in words is "one hundred three thousand, three hundred eighty-one".