111311244461 has 2 divisors, whose sum is σ = 111311244462. Its totient is φ = 111311244460.

The previous prime is 111311244397. The next prime is 111311244467. The reversal of 111311244461 is 164442113111.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 98765004361 + 12546240100 = 314269^2 + 112010^2 .

It is a cyclic number.

It is not a de Polignac number, because 111311244461 - 2⁶ = 111311244397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111311244467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55655622230 + 55655622231.

It is an arithmetic number, because the mean of its divisors is an integer number (55655622231).

Almost surely, 2^111311244461 is an apocalyptic number.

It is an amenable number.

111311244461 is a deficient number, since it is larger than the sum of its proper divisors (1).

111311244461 is an equidigital number, since it uses as much as digits as its factorization.

111311244461 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2304, while the sum is 29.

Adding to 111311244461 its reverse (164442113111), we get a palindrome (275753357572).

The spelling of 111311244461 in words is "one hundred eleven billion, three hundred eleven million, two hundred forty-four thousand, four hundred sixty-one".