111403368551 has 2 divisors, whose sum is σ = 111403368552. Its totient is φ = 111403368550.

The previous prime is 111403368547. The next prime is 111403368569. The reversal of 111403368551 is 155863304111.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 111403368551 - 2² = 111403368547 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111403368851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55701684275 + 55701684276.

It is an arithmetic number, because the mean of its divisors is an integer number (55701684276).

Almost surely, 2^111403368551 is an apocalyptic number.

111403368551 is a deficient number, since it is larger than the sum of its proper divisors (1).

111403368551 is an equidigital number, since it uses as much as digits as its factorization.

111403368551 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 43200, while the sum is 38.

The spelling of 111403368551 in words is "one hundred eleven billion, four hundred three million, three hundred sixty-eight thousand, five hundred fifty-one".