2161117741203 has 12 divisors (see below), whose sum is σ = 3194210202040. Its totient is φ = 1407239459136.

The previous prime is 2161117741193. The next prime is 2161117741231. The reversal of 2161117741203 is 3021477111612.

2161117741203 is a `hidden beast` number, since 2 + 1 + 611 + 17 + 7 + 4 + 1 + 20 + 3 = 666.

It is not a de Polignac number, because 2161117741203 - 2¹⁰ = 2161117740179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2161117741283) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2792141398 + ... + 2792142171.

Almost surely, 2^{2161117741203} is an apocalyptic number.

2161117741203 is a deficient number, since it is larger than the sum of its proper divisors (1033092460837).

2161117741203 is a wasteful number, since it uses less digits than its factorization.

2161117741203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5584283618 (or 5584283615 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 36.

The spelling of 2161117741203 in words is "two trillion, one hundred sixty-one billion, one hundred seventeen million, seven hundred forty-one thousand, two hundred three".