111434042111401 has 2 divisors, whose sum is σ = 111434042111402. Its totient is φ = 111434042111400.

The previous prime is 111434042111389. The next prime is 111434042111437. The reversal of 111434042111401 is 104111240434111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 84090293845776 + 27343748265625 = 9170076^2 + 5229125^2 .

It is a cyclic number.

It is not a de Polignac number, because 111434042111401 - 2²¹ = 111434040014249 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 111434042111401.

It is not a weakly prime, because it can be changed into another prime (111434042111461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55717021055700 + 55717021055701.

It is an arithmetic number, because the mean of its divisors is an integer number (55717021055701).

Almost surely, 2^{111434042111401} is an apocalyptic number.

It is an amenable number.

111434042111401 is a deficient number, since it is larger than the sum of its proper divisors (1).

111434042111401 is an equidigital number, since it uses as much as digits as its factorization.

111434042111401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1536, while the sum is 28.

Adding to 111434042111401 its reverse (104111240434111), we get a palindrome (215545282545512).

The spelling of 111434042111401 in words is "one hundred eleven trillion, four hundred thirty-four billion, forty-two million, one hundred eleven thousand, four hundred one".