2103267805161 has 16 divisors (see below), whose sum is σ = 2815362906240. Its totient is φ = 1396684270080.

The previous prime is 2103267805147. The next prime is 2103267805169. The reversal of 2103267805161 is 1615087623012.

It is a happy number.

It is not a de Polignac number, because 2103267805161 - 2⁵ = 2103267805129 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2103267805169) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 107350 + ... + 2053791.

It is an arithmetic number, because the mean of its divisors is an integer number (175960181640).

Almost surely, 2^{2103267805161} is an apocalyptic number.

It is an amenable number.

2103267805161 is a deficient number, since it is larger than the sum of its proper divisors (712095101079).

2103267805161 is a wasteful number, since it uses less digits than its factorization.

2103267805161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2162416.

The product of its (nonzero) digits is 120960, while the sum is 42.

The spelling of 2103267805161 in words is "two trillion, one hundred three billion, two hundred sixty-seven million, eight hundred five thousand, one hundred sixty-one".