2154053215323 has 6 divisors (see below), whose sum is σ = 3111410199924. Its totient is φ = 1436035476876.

The previous prime is 2154053215319. The next prime is 2154053215331. The reversal of 2154053215323 is 3235123504512.

2154053215323 is a `hidden beast` number, since 2 + 1 + 5 + 4 + 0 + 5 + 321 + 5 + 323 = 666.

It is not a de Polignac number, because 2154053215323 - 2² = 2154053215319 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2154053215333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 119669623065 + ... + 119669623082.

It is an arithmetic number, because the mean of its divisors is an integer number (518568366654).

Almost surely, 2^{2154053215323} is an apocalyptic number.

2154053215323 is a deficient number, since it is larger than the sum of its proper divisors (957356984601).

2154053215323 is a wasteful number, since it uses less digits than its factorization.

2154053215323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239339246153 (or 239339246150 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 36.

Adding to 2154053215323 its reverse (3235123504512), we get a palindrome (5389176719835).

The spelling of 2154053215323 in words is "two trillion, one hundred fifty-four billion, fifty-three million, two hundred fifteen thousand, three hundred twenty-three".