123224240400211 has 4 divisors (see below), whose sum is σ = 127199215897024. Its totient is φ = 119249264903400.

The previous prime is 123224240400181. The next prime is 123224240400301. The reversal of 123224240400211 is 112004042422321.

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

It is a cyclic number.

It is not a de Polignac number, because 123224240400211 - 2¹⁹ = 123224239875923 is a prime.

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 123224240400211.

It is not an unprimeable number, because it can be changed into a prime (123224240200211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1987487748360 + ... + 1987487748421.

It is an arithmetic number, because the mean of its divisors is an integer number (31799803974256).

Almost surely, 2^{123224240400211} is an apocalyptic number.

123224240400211 is a deficient number, since it is larger than the sum of its proper divisors (3974975496813).

123224240400211 is an equidigital number, since it uses as much as digits as its factorization.

123224240400211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3974975496812.

The product of its (nonzero) digits is 6144, while the sum is 28.

Adding to 123224240400211 its reverse (112004042422321), we get a palindrome (235228282822532).

The spelling of 123224240400211 in words is "one hundred twenty-three trillion, two hundred twenty-four billion, two hundred forty million, four hundred thousand, two hundred eleven".