111422423443 has 2 divisors, whose sum is σ = 111422423444. Its totient is φ = 111422423442.

The previous prime is 111422423389. The next prime is 111422423447. The reversal of 111422423443 is 344324224111.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111422423443 is a prime.

It is a super-2 number, since 2×111422423443² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (111422423447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55711211721 + 55711211722.

It is an arithmetic number, because the mean of its divisors is an integer number (55711211722).

Almost surely, 2^111422423443 is an apocalyptic number.

111422423443 is a deficient number, since it is larger than the sum of its proper divisors (1).

111422423443 is an equidigital number, since it uses as much as digits as its factorization.

111422423443 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18432, while the sum is 31.

Adding to 111422423443 its reverse (344324224111), we get a palindrome (455746647554).

The spelling of 111422423443 in words is "one hundred eleven billion, four hundred twenty-two million, four hundred twenty-three thousand, four hundred forty-three".