111403351247 has 2 divisors, whose sum is σ = 111403351248. Its totient is φ = 111403351246.

The previous prime is 111403351193. The next prime is 111403351249. The reversal of 111403351247 is 742153304111.

It is a strong prime.

It is an emirp because it is prime and its reverse (742153304111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 111403351247 - 2¹² = 111403347151 is a prime.

Together with 111403351249, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111403351249) 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, 55701675623 + 55701675624.

It is an arithmetic number, because the mean of its divisors is an integer number (55701675624).

Almost surely, 2^111403351247 is an apocalyptic number.

111403351247 is a deficient number, since it is larger than the sum of its proper divisors (1).

111403351247 is an equidigital number, since it uses as much as digits as its factorization.

111403351247 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10080, while the sum is 32.

Adding to 111403351247 its reverse (742153304111), we get a palindrome (853556655358).

The spelling of 111403351247 in words is "one hundred eleven billion, four hundred three million, three hundred fifty-one thousand, two hundred forty-seven".