2143554553223 has 4 divisors (see below), whose sum is σ = 2144276048808. Its totient is φ = 2142833057640.

The previous prime is 2143554553193. The next prime is 2143554553237. The reversal of 2143554553223 is 3223554553412.

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 2143554553223 - 2⁸ = 2143554552967 is a prime.

It is a super-2 number, since 2×2143554553223² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2143554553123) 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 3 ways as a sum of consecutive naturals, for example, 360743336 + ... + 360749277.

It is an arithmetic number, because the mean of its divisors is an integer number (536069012202).

Almost surely, 2^{2143554553223} is an apocalyptic number.

2143554553223 is a deficient number, since it is larger than the sum of its proper divisors (721495585).

2143554553223 is an equidigital number, since it uses as much as digits as its factorization.

2143554553223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 721495584.

The product of its digits is 2160000, while the sum is 44.

The spelling of 2143554553223 in words is "two trillion, one hundred forty-three billion, five hundred fifty-four million, five hundred fifty-three thousand, two hundred twenty-three".