111003030121 has 2 divisors, whose sum is σ = 111003030122. Its totient is φ = 111003030120.

The previous prime is 111003030109. The next prime is 111003030143. The reversal of 111003030121 is 121030300111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 97696254096 + 13306776025 = 312564^2 + 115355^2 .

It is a cyclic number.

It is not a de Polignac number, because 111003030121 - 2¹³ = 111003021929 is a prime.

It is not a weakly prime, because it can be changed into another prime (111003030521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55501515060 + 55501515061.

It is an arithmetic number, because the mean of its divisors is an integer number (55501515061).

Almost surely, 2^111003030121 is an apocalyptic number.

It is an amenable number.

111003030121 is a deficient number, since it is larger than the sum of its proper divisors (1).

111003030121 is an equidigital number, since it uses as much as digits as its factorization.

111003030121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18, while the sum is 13.

Adding to 111003030121 its reverse (121030300111), we get a palindrome (232033330232).

The spelling of 111003030121 in words is "one hundred eleven billion, three million, thirty thousand, one hundred twenty-one".