123545441003533 has 4 divisors (see below), whose sum is σ = 123545669201280. Its totient is φ = 123545212805788.

The previous prime is 123545441003521. The next prime is 123545441003549. The reversal of 123545441003533 is 335300144545321.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123545441003533 is a prime.

It is a super-2 number, since 2×123545441003533² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 123545441003533.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123545441003233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 113284843 + ... + 114370216.

It is an arithmetic number, because the mean of its divisors is an integer number (30886417300320).

Almost surely, 2^{123545441003533} is an apocalyptic number.

It is an amenable number.

123545441003533 is a deficient number, since it is larger than the sum of its proper divisors (228197747).

123545441003533 is an equidigital number, since it uses as much as digits as its factorization.

123545441003533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228197746.

The product of its (nonzero) digits is 1296000, while the sum is 43.

Adding to 123545441003533 its reverse (335300144545321), we get a palindrome (458845585548854).

The spelling of 123545441003533 in words is "one hundred twenty-three trillion, five hundred forty-five billion, four hundred forty-one million, three thousand, five hundred thirty-three".