124140020109 has 8 divisors (see below), whose sum is σ = 189165744960. Its totient is φ = 70937154336.

The previous prime is 124140020099. The next prime is 124140020113. The reversal of 124140020109 is 901020041421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 124140020109 - 2⁴ = 124140020093 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124140040109) 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 7 ways as a sum of consecutive naturals, for example, 2955714744 + ... + 2955714785.

It is an arithmetic number, because the mean of its divisors is an integer number (23645718120).

Almost surely, 2^124140020109 is an apocalyptic number.

It is an amenable number.

124140020109 is a deficient number, since it is larger than the sum of its proper divisors (65025724851).

124140020109 is an equidigital number, since it uses as much as digits as its factorization.

124140020109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5911429539.

The product of its (nonzero) digits is 576, while the sum is 24.

The spelling of 124140020109 in words is "one hundred twenty-four billion, one hundred forty million, twenty thousand, one hundred nine".