111345442042 has 8 divisors (see below), whose sum is σ = 167026430196. Its totient is φ = 55669965312.

The previous prime is 111345442031. The next prime is 111345442057. The reversal of 111345442042 is 240244543111.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 111162894921 + 182547121 = 333411^2 + 13511^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×111345442042² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 111345441995 and 111345442013.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1326973 + ... + 1408384.

Almost surely, 2^111345442042 is an apocalyptic number.

111345442042 is a deficient number, since it is larger than the sum of its proper divisors (55680988154).

111345442042 is a wasteful number, since it uses less digits than its factorization.

111345442042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2755712.

The product of its (nonzero) digits is 15360, while the sum is 31.

Adding to 111345442042 its reverse (240244543111), we get a palindrome (351589985153).

The spelling of 111345442042 in words is "one hundred eleven billion, three hundred forty-five million, four hundred forty-two thousand, forty-two".