123343544211 has 16 divisors (see below), whose sum is σ = 168923543808. Its totient is φ = 79996831200.

The previous prime is 123343544167. The next prime is 123343544243. The reversal of 123343544211 is 112445343321.

It is not a de Polignac number, because 123343544211 - 2⁷ = 123343544083 is a prime.

It is a super-2 number, since 2×123343544211² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (123343540211) 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 15 ways as a sum of consecutive naturals, for example, 905506 + ... + 1032776.

It is an arithmetic number, because the mean of its divisors is an integer number (10557721488).

Almost surely, 2^123343544211 is an apocalyptic number.

123343544211 is a deficient number, since it is larger than the sum of its proper divisors (45579999597).

123343544211 is a wasteful number, since it uses less digits than its factorization.

123343544211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136042.

The product of its digits is 34560, while the sum is 33.

Adding to 123343544211 its reverse (112445343321), we get a palindrome (235788887532).

The spelling of 123343544211 in words is "one hundred twenty-three billion, three hundred forty-three million, five hundred forty-four thousand, two hundred eleven".