111344145442 has 4 divisors (see below), whose sum is σ = 167016218166. Its totient is φ = 55672072720.

The previous prime is 111344145413. The next prime is 111344145443. The reversal of 111344145442 is 244541443111.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 110622094801 + 722050641 = 332599^2 + 26871^2 .

It is a junction number, because it is equal to n+sod(n) for n = 111344145398 and 111344145407.

It is not an unprimeable number, because it can be changed into a prime (111344145443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27836036359 + ... + 27836036362.

Almost surely, 2^111344145442 is an apocalyptic number.

111344145442 is a deficient number, since it is larger than the sum of its proper divisors (55672072724).

111344145442 is an equidigital number, since it uses as much as digits as its factorization.

111344145442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55672072723.

The product of its digits is 30720, while the sum is 34.

Adding to 111344145442 its reverse (244541443111), we get a palindrome (355885588553).

The spelling of 111344145442 in words is "one hundred eleven billion, three hundred forty-four million, one hundred forty-five thousand, four hundred forty-two".