123444535113 has 16 divisors (see below), whose sum is σ = 182886269760. Its totient is φ = 82293892128.

The previous prime is 123444535013. The next prime is 123444535121. The reversal of 123444535113 is 311535444321.

123444535113 is a `hidden beast` number, since 1 + 2 + 3 + 4 + 4 + 4 + 535 + 113 = 666.

It is not a de Polignac number, because 123444535113 - 2¹⁰ = 123444534089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (123444535153) 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, 1519306 + ... + 1598492.

It is an arithmetic number, because the mean of its divisors is an integer number (11430391860).

Almost surely, 2^123444535113 is an apocalyptic number.

It is an amenable number.

123444535113 is a deficient number, since it is larger than the sum of its proper divisors (59441734647).

123444535113 is an equidigital number, since it uses as much as digits as its factorization.

123444535113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136933 (or 136927 counting only the distinct ones).

The product of its digits is 86400, while the sum is 36.

Adding to 123444535113 its reverse (311535444321), we get a palindrome (434979979434).

The spelling of 123444535113 in words is "one hundred twenty-three billion, four hundred forty-four million, five hundred thirty-five thousand, one hundred thirteen".