1110123043213 has 4 divisors (see below), whose sum is σ = 1117193890780. Its totient is φ = 1103052195648.

The previous prime is 1110123043201. The next prime is 1110123043217. The reversal of 1110123043213 is 3123403210111.

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 141558042564 + 968565000649 = 376242^2 + 984157^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1110123043213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1110123043217) 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, 3535423548 + ... + 3535423861.

It is an arithmetic number, because the mean of its divisors is an integer number (279298472695).

Almost surely, 2^{1110123043213} is an apocalyptic number.

It is an amenable number.

1110123043213 is a deficient number, since it is larger than the sum of its proper divisors (7070847567).

1110123043213 is an equidigital number, since it uses as much as digits as its factorization.

1110123043213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7070847566.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 1110123043213 its reverse (3123403210111), we get a palindrome (4233526253324).

The spelling of 1110123043213 in words is "one trillion, one hundred ten billion, one hundred twenty-three million, forty-three thousand, two hundred thirteen".