111100978343 has 2 divisors, whose sum is σ = 111100978344. Its totient is φ = 111100978342.

The previous prime is 111100978321. The next prime is 111100978393. The reversal of 111100978343 is 343879001111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 111100978343 - 2²² = 111096784039 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 111100978297 and 111100978306.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111100978393) 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, 55550489171 + 55550489172.

It is an arithmetic number, because the mean of its divisors is an integer number (55550489172).

Almost surely, 2^111100978343 is an apocalyptic number.

111100978343 is a deficient number, since it is larger than the sum of its proper divisors (1).

111100978343 is an equidigital number, since it uses as much as digits as its factorization.

111100978343 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144, while the sum is 38.

Adding to 111100978343 its reverse (343879001111), we get a palindrome (454979979454).

The spelling of 111100978343 in words is "one hundred eleven billion, one hundred million, nine hundred seventy-eight thousand, three hundred forty-three".