123541442211 has 32 divisors (see below), whose sum is σ = 189197280000. Its totient is φ = 70916791680.

The previous prime is 123541442209. The next prime is 123541442251. The reversal of 123541442211 is 112244145321.

It is not a de Polignac number, because 123541442211 - 2¹ = 123541442209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (123541442201) 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 31 ways as a sum of consecutive naturals, for example, 3088165 + ... + 3127913.

It is an arithmetic number, because the mean of its divisors is an integer number (5912415000).

Almost surely, 2^123541442211 is an apocalyptic number.

123541442211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

123541442211 is a deficient number, since it is larger than the sum of its proper divisors (65655837789).

123541442211 is a wasteful number, since it uses less digits than its factorization.

123541442211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44739.

The product of its digits is 7680, while the sum is 30.

Adding to 123541442211 its reverse (112244145321), we get a palindrome (235785587532).

The spelling of 123541442211 in words is "one hundred twenty-three billion, five hundred forty-one million, four hundred forty-two thousand, two hundred eleven".