111453325261 has 2 divisors, whose sum is σ = 111453325262. Its totient is φ = 111453325260.

The previous prime is 111453325229. The next prime is 111453325279. The reversal of 111453325261 is 162523354111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 63349869636 + 48103455625 = 251694^2 + 219325^2 .

It is an emirp because it is prime and its reverse (162523354111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 111453325261 - 2⁵ = 111453325229 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111453305261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55726662630 + 55726662631.

It is an arithmetic number, because the mean of its divisors is an integer number (55726662631).

Almost surely, 2^111453325261 is an apocalyptic number.

It is an amenable number.

111453325261 is a deficient number, since it is larger than the sum of its proper divisors (1).

111453325261 is an equidigital number, since it uses as much as digits as its factorization.

111453325261 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 21600, while the sum is 34.

Adding to 111453325261 its reverse (162523354111), we get a palindrome (273976679372).

The spelling of 111453325261 in words is "one hundred eleven billion, four hundred fifty-three million, three hundred twenty-five thousand, two hundred sixty-one".