111313532321 has 2 divisors, whose sum is σ = 111313532322. Its totient is φ = 111313532320.

The previous prime is 111313532287. The next prime is 111313532353. The reversal of 111313532321 is 123235313111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 70089915025 + 41223617296 = 264745^2 + 203036^2 .

It is a cyclic number.

It is not a de Polignac number, because 111313532321 - 2¹⁰ = 111313531297 is a prime.

It is a super-3 number, since 3×111313532321³ (a number of 34 digits) contains 333 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (111313532621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55656766160 + 55656766161.

It is an arithmetic number, because the mean of its divisors is an integer number (55656766161).

Almost surely, 2^111313532321 is an apocalyptic number.

It is an amenable number.

111313532321 is a deficient number, since it is larger than the sum of its proper divisors (1).

111313532321 is an equidigital number, since it uses as much as digits as its factorization.

111313532321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1620, while the sum is 26.

Adding to 111313532321 its reverse (123235313111), we get a palindrome (234548845432).

The spelling of 111313532321 in words is "one hundred eleven billion, three hundred thirteen million, five hundred thirty-two thousand, three hundred twenty-one".