123223044403111 has 16 divisors (see below), whose sum is σ = 128967179702400. Its totient is φ = 117579882486528.

The previous prime is 123223044403013. The next prime is 123223044403163. The reversal of 123223044403111 is 111304440322321.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-123223044403111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123223044403171) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6328671 + ... + 16926256.

It is an arithmetic number, because the mean of its divisors is an integer number (8060448731400).

Almost surely, 2^{123223044403111} is an apocalyptic number.

123223044403111 is a deficient number, since it is larger than the sum of its proper divisors (5744135299289).

123223044403111 is a wasteful number, since it uses less digits than its factorization.

123223044403111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23257098.

The product of its (nonzero) digits is 13824, while the sum is 31.

Adding to 123223044403111 its reverse (111304440322321), we get a palindrome (234527484725432).

The spelling of 123223044403111 in words is "one hundred twenty-three trillion, two hundred twenty-three billion, forty-four million, four hundred three thousand, one hundred eleven".