111541251313 has 2 divisors, whose sum is σ = 111541251314. Its totient is φ = 111541251312.

The previous prime is 111541251257. The next prime is 111541251337. The reversal of 111541251313 is 313152145111.

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., 102737557729 + 8803693584 = 320527^2 + 93828^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111541251313 is a prime.

It is not a weakly prime, because it can be changed into another prime (111541251383) 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, 55770625656 + 55770625657.

It is an arithmetic number, because the mean of its divisors is an integer number (55770625657).

Almost surely, 2^111541251313 is an apocalyptic number.

It is an amenable number.

111541251313 is a deficient number, since it is larger than the sum of its proper divisors (1).

111541251313 is an equidigital number, since it uses as much as digits as its factorization.

111541251313 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1800, while the sum is 28.

Adding to 111541251313 its reverse (313152145111), we get a palindrome (424693396424).

The spelling of 111541251313 in words is "one hundred eleven billion, five hundred forty-one million, two hundred fifty-one thousand, three hundred thirteen".