5145321343223 has 4 divisors (see below), whose sum is σ = 5145370345800. Its totient is φ = 5145272340648.

The previous prime is 5145321343189. The next prime is 5145321343271. The reversal of 5145321343223 is 3223431235415.

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 5145321343223 - 2¹⁰ = 5145321342199 is a prime.

It is a super-2 number, since 2×5145321343223² (a number of 26 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 (5145321343523) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24343448 + ... + 24553901.

It is an arithmetic number, because the mean of its divisors is an integer number (1286342586450).

Almost surely, 2^{5145321343223} is an apocalyptic number.

5145321343223 is a deficient number, since it is larger than the sum of its proper divisors (49002577).

5145321343223 is a wasteful number, since it uses less digits than its factorization.

5145321343223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49002576.

The product of its digits is 259200, while the sum is 38.

Adding to 5145321343223 its reverse (3223431235415), we get a palindrome (8368752578638).

The spelling of 5145321343223 in words is "five trillion, one hundred forty-five billion, three hundred twenty-one million, three hundred forty-three thousand, two hundred twenty-three".