111230203031 has 2 divisors, whose sum is σ = 111230203032. Its totient is φ = 111230203030.

The previous prime is 111230202977. The next prime is 111230203043. The reversal of 111230203031 is 130302032111.

It is a strong prime.

It is an emirp because it is prime and its reverse (130302032111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 111230203031 - 2¹⁰ = 111230202007 is a prime.

It is a super-2 number, since 2×111230203031² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111230223031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55615101515 + 55615101516.

It is an arithmetic number, because the mean of its divisors is an integer number (55615101516).

Almost surely, 2^111230203031 is an apocalyptic number.

111230203031 is a deficient number, since it is larger than the sum of its proper divisors (1).

111230203031 is an equidigital number, since it uses as much as digits as its factorization.

111230203031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 111230203031 its reverse (130302032111), we get a palindrome (241532235142).

The spelling of 111230203031 in words is "one hundred eleven billion, two hundred thirty million, two hundred three thousand, thirty-one".