30131313 has 8 divisors (see below), whose sum is σ = 40284288. Its totient is φ = 20032944.

The previous prime is 30131303. The next prime is 30131317. The reversal of 30131313 is 31313103.

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

It is not a de Polignac number, because 30131313 - 2⁵ = 30131281 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30131292 and 30131301.

It is not an unprimeable number, because it can be changed into a prime (30131317) 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, 12345 + ... + 14582.

It is an arithmetic number, because the mean of its divisors is an integer number (5035536).

Almost surely, 2^30131313 is an apocalyptic number.

It is an amenable number.

30131313 is a deficient number, since it is larger than the sum of its proper divisors (10152975).

30131313 is a wasteful number, since it uses less digits than its factorization.

30131313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27303.

The product of its (nonzero) digits is 81, while the sum is 15.

The square root of 30131313 is about 5489.1996684398. The cubic root of 30131313 is about 311.1759463184.

Adding to 30131313 its reverse (31313103), we get a palindrome (61444416).

The spelling of 30131313 in words is "thirty million, one hundred thirty-one thousand, three hundred thirteen".