111431011011442 has 8 divisors (see below), whose sum is σ = 167628206767536. Its totient is φ = 55554942088932.

The previous prime is 111431011011409. The next prime is 111431011011449. The reversal of 111431011011442 is 244110110134111.

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

It is not an unprimeable number, because it can be changed into a prime (111431011011449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80281707528 + ... + 80281708915.

It is an arithmetic number, because the mean of its divisors is an integer number (20953525845942).

Almost surely, 2^{111431011011442} is an apocalyptic number.

111431011011442 is a deficient number, since it is larger than the sum of its proper divisors (56197195756094).

111431011011442 is a wasteful number, since it uses less digits than its factorization.

111431011011442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160563416792.

The product of its (nonzero) digits is 384, while the sum is 25.

Adding to 111431011011442 its reverse (244110110134111), we get a palindrome (355541121145553).

The spelling of 111431011011442 in words is "one hundred eleven trillion, four hundred thirty-one billion, eleven million, eleven thousand, four hundred forty-two".