123224400105533 has 4 divisors (see below), whose sum is σ = 124354899189180. Its totient is φ = 122093901021888.

The previous prime is 123224400105437. The next prime is 123224400105539. The reversal of 123224400105533 is 335501004422321.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 105429729338404 + 17794670767129 = 10267898^2 + 4218373^2 .

It is a cyclic number.

It is not a de Polignac number, because 123224400105533 - 2¹⁶ = 123224400039997 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 123224400105493 and 123224400105502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123224400105539) 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, 565249541660 + ... + 565249541877.

It is an arithmetic number, because the mean of its divisors is an integer number (31088724797295).

Almost surely, 2^{123224400105533} is an apocalyptic number.

It is an amenable number.

123224400105533 is a deficient number, since it is larger than the sum of its proper divisors (1130499083647).

123224400105533 is a wasteful number, since it uses less digits than its factorization.

123224400105533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1130499083646.

The product of its (nonzero) digits is 86400, while the sum is 35.

Adding to 123224400105533 its reverse (335501004422321), we get a palindrome (458725404527854).

The spelling of 123224400105533 in words is "one hundred twenty-three trillion, two hundred twenty-four billion, four hundred million, one hundred five thousand, five hundred thirty-three".