1042112662105 has 4 divisors (see below), whose sum is σ = 1250535194532. Its totient is φ = 833690129680.

The previous prime is 1042112662067. The next prime is 1042112662109. The reversal of 1042112662105 is 5012662112401.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 189040604944 + 853072057161 = 434788^2 + 923619^2 .

It is not a de Polignac number, because 1042112662105 - 2⁹ = 1042112661593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1042112662109) 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, 104211266206 + ... + 104211266215.

It is an arithmetic number, because the mean of its divisors is an integer number (312633798633).

Almost surely, 2^{1042112662105} is an apocalyptic number.

It is an amenable number.

1042112662105 is a deficient number, since it is larger than the sum of its proper divisors (208422532427).

1042112662105 is an equidigital number, since it uses as much as digits as its factorization.

1042112662105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208422532426.

The product of its (nonzero) digits is 5760, while the sum is 31.

Adding to 1042112662105 its reverse (5012662112401), we get a palindrome (6054774774506).

The spelling of 1042112662105 in words is "one trillion, forty-two billion, one hundred twelve million, six hundred sixty-two thousand, one hundred five".