124123342005 has 48 divisors (see below), whose sum is σ = 238943597760. Its totient is φ = 61106864832.

The previous prime is 124123342001. The next prime is 124123342019. The reversal of 124123342005 is 500243321421.

124123342005 is a `hidden beast` number, since 1 + 2 + 4 + 1 + 233 + 420 + 0 + 5 = 666.

It is not a de Polignac number, because 124123342005 - 2² = 124123342001 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 124123342005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124123342001) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2697399 + ... + 2743028.

It is an arithmetic number, because the mean of its divisors is an integer number (4977991620).

Almost surely, 2^124123342005 is an apocalyptic number.

124123342005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

124123342005 is a deficient number, since it is larger than the sum of its proper divisors (114820255755).

124123342005 is a wasteful number, since it uses less digits than its factorization.

124123342005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5440467 (or 5440448 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

Adding to 124123342005 its reverse (500243321421), we get a palindrome (624366663426).

The spelling of 124123342005 in words is "one hundred twenty-four billion, one hundred twenty-three million, three hundred forty-two thousand, five".