103310993 has 4 divisors (see below), whose sum is σ = 106103220. Its totient is φ = 100518768.

The previous prime is 103310959. The next prime is 103311001. The reversal of 103310993 is 399013301.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 66064384 + 37246609 = 8128^2 + 6103^2 .

It is a cyclic number.

It is not a de Polignac number, because 103310993 - 2⁸ = 103310737 is a prime.

It is a super-2 number, since 2×103310993² = 21346322549292098, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (103310903) 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 in 3 ways as a sum of consecutive naturals, for example, 1396058 + ... + 1396131.

It is an arithmetic number, because the mean of its divisors is an integer number (26525805).

Almost surely, 2^103310993 is an apocalyptic number.

It is an amenable number.

103310993 is a deficient number, since it is larger than the sum of its proper divisors (2792227).

103310993 is an equidigital number, since it uses as much as digits as its factorization.

103310993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2792226.

The product of its (nonzero) digits is 2187, while the sum is 29.

The square root of 103310993 is about 10164.2015426693. The cubic root of 103310993 is about 469.2261189466.

The spelling of 103310993 in words is "one hundred three million, three hundred ten thousand, nine hundred ninety-three".