111552133261 has 2 divisors, whose sum is σ = 111552133262. Its totient is φ = 111552133260.

The previous prime is 111552133171. The next prime is 111552133283. The reversal of 111552133261 is 162331255111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 67531897161 + 44020236100 = 259869^2 + 209810^2 .

It is a cyclic number.

It is not a de Polignac number, because 111552133261 - 2¹¹ = 111552131213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111552133061) 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, 55776066630 + 55776066631.

It is an arithmetic number, because the mean of its divisors is an integer number (55776066631).

Almost surely, 2^111552133261 is an apocalyptic number.

It is an amenable number.

111552133261 is a deficient number, since it is larger than the sum of its proper divisors (1).

111552133261 is an equidigital number, since it uses as much as digits as its factorization.

111552133261 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5400, while the sum is 31.

Adding to 111552133261 its reverse (162331255111), we get a palindrome (273883388372).

The spelling of 111552133261 in words is "one hundred eleven billion, five hundred fifty-two million, one hundred thirty-three thousand, two hundred sixty-one".