111742402021343 has 2 divisors, whose sum is σ = 111742402021344. Its totient is φ = 111742402021342.

The previous prime is 111742402021337. The next prime is 111742402021381. The reversal of 111742402021343 is 343120204247111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 111742402021343 - 2¹⁸ = 111742401759199 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111742402021543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55871201010671 + 55871201010672.

It is an arithmetic number, because the mean of its divisors is an integer number (55871201010672).

Almost surely, 2^{111742402021343} is an apocalyptic number.

111742402021343 is a deficient number, since it is larger than the sum of its proper divisors (1).

111742402021343 is an equidigital number, since it uses as much as digits as its factorization.

111742402021343 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32256, while the sum is 35.

Adding to 111742402021343 its reverse (343120204247111), we get a palindrome (454862606268454).

The spelling of 111742402021343 in words is "one hundred eleven trillion, seven hundred forty-two billion, four hundred two million, twenty-one thousand, three hundred forty-three".