145503304305323 has 4 divisors (see below), whose sum is σ = 145531728476160. Its totient is φ = 145474880134488.

The previous prime is 145503304305311. The next prime is 145503304305493. The reversal of 145503304305323 is 323503403305541.

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 145503304305323 - 2¹⁰ = 145503304304299 is a prime.

It is a super-2 number, since 2×145503304305323² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145503304355323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14212077740 + ... + 14212087977.

It is an arithmetic number, because the mean of its divisors is an integer number (36382932119040).

Almost surely, 2^{145503304305323} is an apocalyptic number.

145503304305323 is a deficient number, since it is larger than the sum of its proper divisors (28424170837).

145503304305323 is an equidigital number, since it uses as much as digits as its factorization.

145503304305323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28424170836.

The product of its (nonzero) digits is 972000, while the sum is 41.

The spelling of 145503304305323 in words is "one hundred forty-five trillion, five hundred three billion, three hundred four million, three hundred five thousand, three hundred twenty-three".