111205404203 has 2 divisors, whose sum is σ = 111205404204. Its totient is φ = 111205404202.

The previous prime is 111205404119. The next prime is 111205404241. The reversal of 111205404203 is 302404502111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 111205404203 - 2¹² = 111205400107 is a prime.

It is a super-2 number, since 2×111205404203² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (111205404263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55602702101 + 55602702102.

It is an arithmetic number, because the mean of its divisors is an integer number (55602702102).

Almost surely, 2^111205404203 is an apocalyptic number.

111205404203 is a deficient number, since it is larger than the sum of its proper divisors (1).

111205404203 is an equidigital number, since it uses as much as digits as its factorization.

111205404203 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 960, while the sum is 23.

Adding to 111205404203 its reverse (302404502111), we get a palindrome (413609906314).

The spelling of 111205404203 in words is "one hundred eleven billion, two hundred five million, four hundred four thousand, two hundred three".