3103020013 has 4 divisors (see below), whose sum is σ = 3285550620. Its totient is φ = 2920489408.

The previous prime is 3103020001. The next prime is 3103020049. The reversal of 3103020013 is 3100203013.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3100203013 = 8537 ⋅363149.

It can be written as a sum of positive squares in 2 ways, for example, as 1832952969 + 1270067044 = 42813^2 + 35638^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3103020013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3103019975 and 3103020002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3103020913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 91265278 + ... + 91265311.

It is an arithmetic number, because the mean of its divisors is an integer number (821387655).

Almost surely, 2^3103020013 is an apocalyptic number.

It is an amenable number.

3103020013 is a deficient number, since it is larger than the sum of its proper divisors (182530607).

3103020013 is a wasteful number, since it uses less digits than its factorization.

3103020013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182530606.

The product of its (nonzero) digits is 54, while the sum is 13.

The square root of 3103020013 is about 55704.7575436784. The cubic root of 3103020013 is about 1458.5730746415.

Adding to 3103020013 its reverse (3100203013), we get a palindrome (6203223026).

The spelling of 3103020013 in words is "three billion, one hundred three million, twenty thousand, thirteen".