111345054442 has 4 divisors (see below), whose sum is σ = 167017581666. Its totient is φ = 55672527220.

The previous prime is 111345054439. The next prime is 111345054461. The reversal of 111345054442 is 244450543111.

It is a happy number.

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., 103239473481 + 8105580961 = 321309^2 + 90031^2 .

It is a super-2 number, since 2×111345054442² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 111345054398 and 111345054407.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27836263609 + ... + 27836263612.

Almost surely, 2^111345054442 is an apocalyptic number.

111345054442 is a deficient number, since it is larger than the sum of its proper divisors (55672527224).

111345054442 is an equidigital number, since it uses as much as digits as its factorization.

111345054442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55672527223.

The product of its (nonzero) digits is 38400, while the sum is 34.

Adding to 111345054442 its reverse (244450543111), we get a palindrome (355795597553).

The spelling of 111345054442 in words is "one hundred eleven billion, three hundred forty-five million, fifty-four thousand, four hundred forty-two".