30311105 has 12 divisors (see below), whose sum is σ = 39981396. Its totient is φ = 22044000.

The previous prime is 30311093. The next prime is 30311129. The reversal of 30311105 is 50111303.

It can be written as a sum of positive squares in 2 ways, for example, as 7203856 + 23107249 = 2684^2 + 4807^2 .

It is not a de Polignac number, because 30311105 - 2⁶ = 30311041 is a prime.

It is a hoax number, since the sum of its digits (14) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30311105.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 24446 + ... + 25655.

It is an arithmetic number, because the mean of its divisors is an integer number (3331783).

Almost surely, 2^30311105 is an apocalyptic number.

It is an amenable number.

30311105 is a deficient number, since it is larger than the sum of its proper divisors (9670291).

30311105 is a wasteful number, since it uses less digits than its factorization.

30311105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50128 (or 50117 counting only the distinct ones).

The product of its (nonzero) digits is 45, while the sum is 14.

The square root of 30311105 is about 5505.5521975548. The cubic root of 30311105 is about 311.7936429943.

Adding to 30311105 its reverse (50111303), we get a palindrome (80422408).

The spelling of 30311105 in words is "thirty million, three hundred eleven thousand, one hundred five".