30013012123013 has 4 divisors (see below), whose sum is σ = 30019091328300. Its totient is φ = 30006932917728.

The previous prime is 30013012123009. The next prime is 30013012123027. The reversal of 30013012123013 is 31032121031003.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 19126819990084 + 10886192132929 = 4373422^2 + 3299423^2 .

It is a cyclic number.

It is not a de Polignac number, because 30013012123013 - 2² = 30013012123009 is a prime.

It is a super-2 number, since 2×30013012123013² (a number of 28 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 (30013012123033) 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, 3039595238 + ... + 3039605111.

It is an arithmetic number, because the mean of its divisors is an integer number (7504772832075).

Almost surely, 2^{30013012123013} is an apocalyptic number.

It is an amenable number.

30013012123013 is a deficient number, since it is larger than the sum of its proper divisors (6079205287).

30013012123013 is an equidigital number, since it uses as much as digits as its factorization.

30013012123013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6079205286.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 30013012123013 its reverse (31032121031003), we get a palindrome (61045133154016).

The spelling of 30013012123013 in words is "thirty trillion, thirteen billion, twelve million, one hundred twenty-three thousand, thirteen".