1001442111 has 8 divisors (see below), whose sum is σ = 1371344304. Its totient is φ = 649584000.

The previous prime is 1001442107. The next prime is 1001442133. The reversal of 1001442111 is 1112441001.

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

It is not a de Polignac number, because 1001442111 - 2² = 1001442107 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001442161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4510890 + ... + 4511111.

It is an arithmetic number, because the mean of its divisors is an integer number (171418038).

Almost surely, 2^1001442111 is an apocalyptic number.

1001442111 is a deficient number, since it is larger than the sum of its proper divisors (369902193).

1001442111 is an equidigital number, since it uses as much as digits as its factorization.

1001442111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9022041.

The product of its (nonzero) digits is 32, while the sum is 15.

The square root of 1001442111 is about 31645.5701639266. The cubic root of 1001442111 is about 1000.4804727756.

Adding to 1001442111 its reverse (1112441001), we get a palindrome (2113883112).

It can be divided in two parts, 10014 and 42111, that added together give a palindrome (52125).

The spelling of 1001442111 in words is "one billion, one million, four hundred forty-two thousand, one hundred eleven".