30520005103 has 12 divisors (see below), whose sum is σ = 35628331080. Its totient is φ = 26067554352.

The previous prime is 30520005091. The next prime is 30520005163. The reversal of 30520005103 is 30150002503.

It is not a de Polignac number, because 30520005103 - 2⁵ = 30520005071 is a prime.

It is a super-2 number, since 2×30520005103² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30520005163) 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 11 ways as a sum of consecutive naturals, for example, 1086588 + ... + 1114321.

It is an arithmetic number, because the mean of its divisors is an integer number (2969027590).

Almost surely, 2^30520005103 is an apocalyptic number.

30520005103 is a deficient number, since it is larger than the sum of its proper divisors (5108325977).

30520005103 is a wasteful number, since it uses less digits than its factorization.

30520005103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2201206 (or 2201199 counting only the distinct ones).

The product of its (nonzero) digits is 450, while the sum is 19.

Adding to 30520005103 its reverse (30150002503), we get a palindrome (60670007606).

The spelling of 30520005103 in words is "thirty billion, five hundred twenty million, five thousand, one hundred three".