111231013103321 has 2 divisors, whose sum is σ = 111231013103322. Its totient is φ = 111231013103320.

The previous prime is 111231013103269. The next prime is 111231013103347. The reversal of 111231013103321 is 123301310132111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 93772496304400 + 17458516798921 = 9683620^2 + 4178339^2 .

It is an emirp because it is prime and its reverse (123301310132111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 111231013103321 - 2⁴⁶ = 40862268925657 is a prime.

It is not a weakly prime, because it can be changed into another prime (111231013103351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55615506551660 + 55615506551661.

It is an arithmetic number, because the mean of its divisors is an integer number (55615506551661).

Almost surely, 2^{111231013103321} is an apocalyptic number.

It is an amenable number.

111231013103321 is a deficient number, since it is larger than the sum of its proper divisors (1).

111231013103321 is an equidigital number, since it uses as much as digits as its factorization.

111231013103321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324, while the sum is 23.

Adding to 111231013103321 its reverse (123301310132111), we get a palindrome (234532323235432).

The spelling of 111231013103321 in words is "one hundred eleven trillion, two hundred thirty-one billion, thirteen million, one hundred three thousand, three hundred twenty-one".