109305301243 has 4 divisors (see below), whose sum is σ = 109306364328. Its totient is φ = 109304238160.

The previous prime is 109305301199. The next prime is 109305301249. The reversal of 109305301243 is 342103503901.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 342103503901 = 23 ⋅14874065387.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-109305301243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (109305301249) 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, 358546 + ... + 589207.

It is an arithmetic number, because the mean of its divisors is an integer number (27326591082).

Almost surely, 2^109305301243 is an apocalyptic number.

109305301243 is a deficient number, since it is larger than the sum of its proper divisors (1063085).

109305301243 is an equidigital number, since it uses as much as digits as its factorization.

109305301243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1063084.

The product of its (nonzero) digits is 9720, while the sum is 31.

The spelling of 109305301243 in words is "one hundred nine billion, three hundred five million, three hundred one thousand, two hundred forty-three".