111011230320203 has 4 divisors (see below), whose sum is σ = 111675968226480. Its totient is φ = 110346492413928.

The previous prime is 111011230320191. The next prime is 111011230320223. The reversal of 111011230320203 is 302023032110111.

It is a happy number.

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 111011230320203 - 2²⁸ = 111010961884747 is a prime.

It is a super-2 number, since 2×111011230320203² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111011230320223) 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, 332368952888 + ... + 332368953221.

It is an arithmetic number, because the mean of its divisors is an integer number (27918992056620).

Almost surely, 2^{111011230320203} is an apocalyptic number.

111011230320203 is a deficient number, since it is larger than the sum of its proper divisors (664737906277).

111011230320203 is an equidigital number, since it uses as much as digits as its factorization.

111011230320203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 664737906276.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 111011230320203 its reverse (302023032110111), we get a palindrome (413034262430314).

The spelling of 111011230320203 in words is "one hundred eleven trillion, eleven billion, two hundred thirty million, three hundred twenty thousand, two hundred three".