1103115043213 has 4 divisors (see below), whose sum is σ = 1168004163420. Its totient is φ = 1038225923008.

The previous prime is 1103115043207. The next prime is 1103115043231. The reversal of 1103115043213 is 3123405113011.

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 885550635369 + 217564407844 = 941037^2 + 466438^2 .

It is a cyclic number.

It is not a de Polignac number, because 1103115043213 - 2⁵ = 1103115043181 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1103115043313) 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, 32444560078 + ... + 32444560111.

It is an arithmetic number, because the mean of its divisors is an integer number (292001040855).

Almost surely, 2^{1103115043213} is an apocalyptic number.

It is an amenable number.

1103115043213 is a deficient number, since it is larger than the sum of its proper divisors (64889120207).

1103115043213 is an equidigital number, since it uses as much as digits as its factorization.

1103115043213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64889120206.

The product of its (nonzero) digits is 1080, while the sum is 25.

The spelling of 1103115043213 in words is "one trillion, one hundred three billion, one hundred fifteen million, forty-three thousand, two hundred thirteen".