30131013 has 16 divisors (see below), whose sum is σ = 44283456. Its totient is φ = 18071040.

The previous prime is 30130999. The next prime is 30131033. The reversal of 30131013 is 31013103.

It is not a de Polignac number, because 30131013 - 2⁵ = 30130981 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30131013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30131033) 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 15 ways as a sum of consecutive naturals, for example, 1506 + ... + 7907.

It is an arithmetic number, because the mean of its divisors is an integer number (2767716).

Almost surely, 2^30131013 is an apocalyptic number.

30131013 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

It is an amenable number.

30131013 is a deficient number, since it is larger than the sum of its proper divisors (14152443).

30131013 is a wasteful number, since it uses less digits than its factorization.

30131013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9524.

The product of its (nonzero) digits is 27, while the sum is 12.

The square root of 30131013 is about 5489.1723419838. The cubic root of 30131013 is about 311.1749135821.

Adding to 30131013 its reverse (31013103), we get a palindrome (61144116).

The spelling of 30131013 in words is "thirty million, one hundred thirty-one thousand, thirteen".