111121420442 has 8 divisors (see below), whose sum is σ = 166880800800. Its totient is φ = 55494486844.

The previous prime is 111121420429. The next prime is 111121420469. The reversal of 111121420442 is 244024121111.

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

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, 33109592 + ... + 33112947.

It is an arithmetic number, because the mean of its divisors is an integer number (20860100100).

Almost surely, 2^111121420442 is an apocalyptic number.

111121420442 is a deficient number, since it is larger than the sum of its proper divisors (55759380358).

111121420442 is an equidigital number, since it uses as much as digits as its factorization.

111121420442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66223380.

The product of its (nonzero) digits is 512, while the sum is 23.

Adding to 111121420442 its reverse (244024121111), we get a palindrome (355145541553).

The spelling of 111121420442 in words is "one hundred eleven billion, one hundred twenty-one million, four hundred twenty thousand, four hundred forty-two".