30055312513 has 4 divisors (see below), whose sum is σ = 30088450480. Its totient is φ = 30022174548.

The previous prime is 30055312499. The next prime is 30055312519. The reversal of 30055312513 is 31521355003.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30055312513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30055312519) 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, 16567623 + ... + 16569436.

It is an arithmetic number, because the mean of its divisors is an integer number (7522112620).

Almost surely, 2^30055312513 is an apocalyptic number.

It is an amenable number.

30055312513 is a deficient number, since it is larger than the sum of its proper divisors (33137967).

30055312513 is an equidigital number, since it uses as much as digits as its factorization.

30055312513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33137966.

The product of its (nonzero) digits is 6750, while the sum is 28.

Adding to 30055312513 its reverse (31521355003), we get a palindrome (61576667516).

The spelling of 30055312513 in words is "thirty billion, fifty-five million, three hundred twelve thousand, five hundred thirteen".