2143551223345 has 16 divisors (see below), whose sum is σ = 2939865010560. Its totient is φ = 1469794886784.

The previous prime is 2143551223313. The next prime is 2143551223381. The reversal of 2143551223345 is 5433221553412.

It is not a de Polignac number, because 2143551223345 - 2⁵ = 2143551223313 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2143551223298 and 2143551223307.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 669460 + ... + 2176069.

It is an arithmetic number, because the mean of its divisors is an integer number (183741563160).

Almost surely, 2^{2143551223345} is an apocalyptic number.

It is an amenable number.

2143551223345 is a deficient number, since it is larger than the sum of its proper divisors (796313787215).

2143551223345 is a wasteful number, since it uses less digits than its factorization.

2143551223345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2867064.

The product of its digits is 432000, while the sum is 40.

Adding to 2143551223345 its reverse (5433221553412), we get a palindrome (7576772776757).

The spelling of 2143551223345 in words is "two trillion, one hundred forty-three billion, five hundred fifty-one million, two hundred twenty-three thousand, three hundred forty-five".