111111401442 has 32 divisors (see below), whose sum is σ = 225725879232. Its totient is φ = 36454201344.

The previous prime is 111111401383. The next prime is 111111401521. The reversal of 111111401442 is 244104111111.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 375678 + ... + 602790.

It is an arithmetic number, because the mean of its divisors is an integer number (7053933726).

Almost surely, 2^111111401442 is an apocalyptic number.

111111401442 is an abundant number, since it is smaller than the sum of its proper divisors (114614477790).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

111111401442 is a wasteful number, since it uses less digits than its factorization.

111111401442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228402.

The product of its (nonzero) digits is 128, while the sum is 21.

Adding to 111111401442 its reverse (244104111111), we get a palindrome (355215512553).

The spelling of 111111401442 in words is "one hundred eleven billion, one hundred eleven million, four hundred one thousand, four hundred forty-two".