111203230009 has 4 divisors (see below), whose sum is σ = 111239349760. Its totient is φ = 111167110260.

The previous prime is 111203229953. The next prime is 111203230013. The reversal of 111203230009 is 900032302111.

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, and also an emirpimes, since its reverse is a distinct semiprime: 900032302111 = 50093 ⋅17967227.

It is a de Polignac number, because none of the positive numbers 2^k-111203230009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111203230079) 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, 18055257 + ... + 18061414.

It is an arithmetic number, because the mean of its divisors is an integer number (27809837440).

Almost surely, 2^111203230009 is an apocalyptic number.

It is an amenable number.

111203230009 is a deficient number, since it is larger than the sum of its proper divisors (36119751).

111203230009 is an equidigital number, since it uses as much as digits as its factorization.

111203230009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36119750.

The product of its (nonzero) digits is 324, while the sum is 22.

The spelling of 111203230009 in words is "one hundred eleven billion, two hundred three million, two hundred thirty thousand, nine".