1111042120345 has 8 divisors (see below), whose sum is σ = 1334094917760. Its totient is φ = 888270780720.

The previous prime is 1111042120339. The next prime is 1111042120393. The reversal of 1111042120345 is 5430212401111.

It is a happy number.

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

It is not a de Polignac number, because 1111042120345 - 2²¹ = 1111040023193 is a prime.

It is an unprimeable number.

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, 70355761 + ... + 70371550.

It is an arithmetic number, because the mean of its divisors is an integer number (166761864720).

Almost surely, 2^{1111042120345} is an apocalyptic number.

It is an amenable number.

1111042120345 is a deficient number, since it is larger than the sum of its proper divisors (223052797415).

1111042120345 is a wasteful number, since it uses less digits than its factorization.

1111042120345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140728895.

The product of its (nonzero) digits is 960, while the sum is 25.

Adding to 1111042120345 its reverse (5430212401111), we get a palindrome (6541254521456).

The spelling of 1111042120345 in words is "one trillion, one hundred eleven billion, forty-two million, one hundred twenty thousand, three hundred forty-five".