1111111442 has 16 divisors (see below), whose sum is σ = 1905327360. Its totient is φ = 476049408.

The previous prime is 1111111427. The next prime is 1111111459. The reversal of 1111111442 is 2441111111.

It is a self number, because there is not a number n which added to its sum of digits gives 1111111442.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47378 + ... + 66834.

It is an arithmetic number, because the mean of its divisors is an integer number (119082960).

Almost surely, 2^1111111442 is an apocalyptic number.

1111111442 is a deficient number, since it is larger than the sum of its proper divisors (794215918).

1111111442 is a wasteful number, since it uses less digits than its factorization.

1111111442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23545.

The product of its digits is 32, while the sum is 17.

The square root of 1111111442 is about 33333.3382966663. The cubic root of 1111111442 is about 1035.7442714661.

Adding to 1111111442 its reverse (2441111111), we get a palindrome (3552222553).

The spelling of 1111111442 in words is "one billion, one hundred eleven million, one hundred eleven thousand, four hundred forty-two".