30112101212243 has 4 divisors (see below), whose sum is σ = 30115786461048. Its totient is φ = 30108415963440.

The previous prime is 30112101212209. The next prime is 30112101212261. The reversal of 30112101212243 is 34221210121103.

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

It is a cyclic number.

It is not a de Polignac number, because 30112101212243 - 2⁸ = 30112101211987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30112101212293) 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, 1842612146 + ... + 1842628487.

It is an arithmetic number, because the mean of its divisors is an integer number (7528946615262).

Almost surely, 2^{30112101212243} is an apocalyptic number.

30112101212243 is a deficient number, since it is larger than the sum of its proper divisors (3685248805).

30112101212243 is an equidigital number, since it uses as much as digits as its factorization.

30112101212243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3685248804.

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 30112101212243 its reverse (34221210121103), we get a palindrome (64333311333346).

The spelling of 30112101212243 in words is "thirty trillion, one hundred twelve billion, one hundred one million, two hundred twelve thousand, two hundred forty-three".