31330105 has 8 divisors (see below), whose sum is σ = 37635264. Its totient is φ = 25038000.

The previous prime is 31330087. The next prime is 31330111. The reversal of 31330105 is 50103313.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 31330105 - 2⁵ = 31330073 is a prime.

It is a super-2 number, since 2×31330105² = 1963150958622050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3180 + ... + 8530.

It is an arithmetic number, because the mean of its divisors is an integer number (4704408).

Almost surely, 2^31330105 is an apocalyptic number.

It is an amenable number.

31330105 is a deficient number, since it is larger than the sum of its proper divisors (6305159).

31330105 is a wasteful number, since it uses less digits than its factorization.

31330105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6527.

The product of its (nonzero) digits is 135, while the sum is 16.

The square root of 31330105 is about 5597.3301671422. The cubic root of 31330105 is about 315.2491687718.

Adding to 31330105 its reverse (50103313), we get a palindrome (81433418).

The spelling of 31330105 in words is "thirty-one million, three hundred thirty thousand, one hundred five".