123530521534345 has 8 divisors (see below), whose sum is σ = 148236719126400. Its totient is φ = 98824355037360.

The previous prime is 123530521534333. The next prime is 123530521534349. The reversal of 123530521534345 is 543435125035321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 123530521534345 - 2²³ = 123530513145737 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 123530521534295 and 123530521534304.

It is not an unprimeable number, because it can be changed into a prime (123530521534349) 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, 2108080 + ... + 15858910.

It is an arithmetic number, because the mean of its divisors is an integer number (18529589890800).

Almost surely, 2^{123530521534345} is an apocalyptic number.

It is an amenable number.

123530521534345 is a deficient number, since it is larger than the sum of its proper divisors (24706197592055).

123530521534345 is a wasteful number, since it uses less digits than its factorization.

123530521534345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15547535.

The product of its (nonzero) digits is 3240000, while the sum is 46.

Adding to 123530521534345 its reverse (543435125035321), we get a palindrome (666965646569666).

The spelling of 123530521534345 in words is "one hundred twenty-three trillion, five hundred thirty billion, five hundred twenty-one million, five hundred thirty-four thousand, three hundred forty-five".