1126121817803 has 4 divisors (see below), whose sum is σ = 1126127700600. Its totient is φ = 1126115935008.

The previous prime is 1126121817797. The next prime is 1126121817829. The reversal of 1126121817803 is 3087181216211.

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

It is a cyclic number.

It is not a de Polignac number, because 1126121817803 - 2⁴ = 1126121817787 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1126121817893) 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, 2644253 + ... + 3040446.

It is an arithmetic number, because the mean of its divisors is an integer number (281531925150).

Almost surely, 2^{1126121817803} is an apocalyptic number.

1126121817803 is a deficient number, since it is larger than the sum of its proper divisors (5882797).

1126121817803 is an equidigital number, since it uses as much as digits as its factorization.

1126121817803 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5882796.

The product of its (nonzero) digits is 32256, while the sum is 41.

The spelling of 1126121817803 in words is "one trillion, one hundred twenty-six billion, one hundred twenty-one million, eight hundred seventeen thousand, eight hundred three".