123530530305445 has 16 divisors (see below), whose sum is σ = 153872420606208. Its totient is φ = 95136174008640.

The previous prime is 123530530305421. The next prime is 123530530305451. The reversal of 123530530305445 is 544503035035321.

It is not a de Polignac number, because 123530530305445 - 2³⁷ = 123393091351973 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 4308689199 + ... + 4308717868.

It is an arithmetic number, because the mean of its divisors is an integer number (9617026287888).

Almost surely, 2^{123530530305445} is an apocalyptic number.

It is an amenable number.

123530530305445 is a deficient number, since it is larger than the sum of its proper divisors (30341890300763).

123530530305445 is an equidigital number, since it uses as much as digits as its factorization.

123530530305445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8617407180.

The product of its (nonzero) digits is 1620000, while the sum is 43.

The spelling of 123530530305445 in words is "one hundred twenty-three trillion, five hundred thirty billion, five hundred thirty million, three hundred five thousand, four hundred forty-five".