2105554155323 has 12 divisors (see below), whose sum is σ = 2122563085632. Its totient is φ = 2088627649920.

The previous prime is 2105554155301. The next prime is 2105554155347. The reversal of 2105554155323 is 3235514555012.

It is not a de Polignac number, because 2105554155323 - 2¹⁰ = 2105554154299 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2105554355323) 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, 22326038 + ... + 22420148.

It is an arithmetic number, because the mean of its divisors is an integer number (176880257136).

Almost surely, 2^{2105554155323} is an apocalyptic number.

2105554155323 is a deficient number, since it is larger than the sum of its proper divisors (17008930309).

2105554155323 is an frugal number, since it uses more digits than its factorization.

2105554155323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94982 (or 94645 counting only the distinct ones).

The product of its (nonzero) digits is 450000, while the sum is 41.

The spelling of 2105554155323 in words is "two trillion, one hundred five billion, five hundred fifty-four million, one hundred fifty-five thousand, three hundred twenty-three".