111403230343121 has 2 divisors, whose sum is σ = 111403230343122. Its totient is φ = 111403230343120.

The previous prime is 111403230343117. The next prime is 111403230343177. The reversal of 111403230343121 is 121343032304111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 63165760440721 + 48237469902400 = 7947689^2 + 6945320^2 .

It is an emirp because it is prime and its reverse (121343032304111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 111403230343121 - 2² = 111403230343117 is a prime.

It is not a weakly prime, because it can be changed into another prime (111403230349121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55701615171560 + 55701615171561.

It is an arithmetic number, because the mean of its divisors is an integer number (55701615171561).

Almost surely, 2^{111403230343121} is an apocalyptic number.

It is an amenable number.

111403230343121 is a deficient number, since it is larger than the sum of its proper divisors (1).

111403230343121 is an equidigital number, since it uses as much as digits as its factorization.

111403230343121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 29.

Adding to 111403230343121 its reverse (121343032304111), we get a palindrome (232746262647232).

The spelling of 111403230343121 in words is "one hundred eleven trillion, four hundred three billion, two hundred thirty million, three hundred forty-three thousand, one hundred twenty-one".