145521021124303 has 8 divisors (see below), whose sum is σ = 160062190028496. Its totient is φ = 132291837384520.

The previous prime is 145521021124279. The next prime is 145521021124361. The reversal of 145521021124303 is 303421120125541.

145521021124303 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 145521021124303 - 2³⁷ = 145383582170831 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145521021124403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54666047176 + ... + 54666049837.

It is an arithmetic number, because the mean of its divisors is an integer number (20007773753562).

Almost surely, 2^{145521021124303} is an apocalyptic number.

145521021124303 is a deficient number, since it is larger than the sum of its proper divisors (14541168904193).

145521021124303 is an equidigital number, since it uses as much as digits as its factorization.

145521021124303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109332097046 (or 109332097024 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 34.

Adding to 145521021124303 its reverse (303421120125541), we get a palindrome (448942141249844).

The spelling of 145521021124303 in words is "one hundred forty-five trillion, five hundred twenty-one billion, twenty-one million, one hundred twenty-four thousand, three hundred three".