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103013 = 313323

103013 has 4 divisors (see below), whose sum is σ = 106368. Its totient is φ = 99660.

The previous prime is 103007. The next prime is 103043. The reversal of 103013 is 310301.

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, and also an emirpimes, since its reverse is a distinct semiprime: 310301 = 1718253.

It is a cyclic number.

It is not a de Polignac number, because 103013 - 214 = 86629 is a prime.

It is a super-2 number, since 2×1030132 = 21223356338, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103043) 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, 1631 + ... + 1692.

It is an arithmetic number, because the mean of its divisors is an integer number (26592).

2103013 is an apocalyptic number.

It is an amenable number.

103013 is a deficient number, since it is larger than the sum of its proper divisors (3355).

103013 is an equidigital number, since it uses as much as digits as its factorization.

103013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3354.

The product of its (nonzero) digits is 9, while the sum is 8.

The square root of 103013 is about 320.9563833296. The cubic root of 103013 is about 46.8774535012.

Adding to 103013 its reverse (310301), we get a palindrome (413314).

It can be divided in two parts, 10301 and 3, that multiplied together give a palindrome (30903).

The spelling of 103013 in words is "one hundred three thousand, thirteen".

Divisors: 1 31 3323 103013