30312113 has 8 divisors (see below), whose sum is σ = 32865000. Its totient is φ = 27790848.

The previous prime is 30312103. The next prime is 30312127. The reversal of 30312113 is 31121303.

It can be written as a sum of positive squares in 4 ways, for example, as 1227664 + 29084449 = 1108^2 + 5393^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 30312113 - 2¹² = 30308017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30312103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5888 + ... + 9761.

It is an arithmetic number, because the mean of its divisors is an integer number (4108125).

Almost surely, 2^30312113 is an apocalyptic number.

It is an amenable number.

30312113 is a deficient number, since it is larger than the sum of its proper divisors (2552887).

30312113 is a wasteful number, since it uses less digits than its factorization.

30312113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15811.

The product of its (nonzero) digits is 54, while the sum is 14.

The square root of 30312113 is about 5505.6437407446. The cubic root of 30312113 is about 311.7970992029.

Adding to 30312113 its reverse (31121303), we get a palindrome (61433416).

The spelling of 30312113 in words is "thirty million, three hundred twelve thousand, one hundred thirteen".