30103013 has 4 divisors (see below), whose sum is σ = 30115488. Its totient is φ = 30090540.

The previous prime is 30103009. The next prime is 30103019. The reversal of 30103013 is 31030103.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 30103013 - 2² = 30103009 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30102985 and 30103003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30103019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1331 + ... + 7872.

It is an arithmetic number, because the mean of its divisors is an integer number (7528872).

Almost surely, 2^30103013 is an apocalyptic number.

It is an amenable number.

30103013 is a deficient number, since it is larger than the sum of its proper divisors (12475).

30103013 is an equidigital number, since it uses as much as digits as its factorization.

30103013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12474.

The product of its (nonzero) digits is 27, while the sum is 11.

The square root of 30103013 is about 5486.6212736073. The cubic root of 30103013 is about 311.0784946768.

Adding to 30103013 its reverse (31030103), we get a palindrome (61133116).

The spelling of 30103013 in words is "thirty million, one hundred three thousand, thirteen".