124120253455 has 16 divisors (see below), whose sum is σ = 166447739808. Its totient is φ = 88067584000.

The previous prime is 124120253449. The next prime is 124120253459. The reversal of 124120253455 is 554352021421.

It is a happy number.

It is not a de Polignac number, because 124120253455 - 2¹⁷ = 124120122383 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 124120253455.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124120253459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27518866 + ... + 27523375.

It is an arithmetic number, because the mean of its divisors is an integer number (10402983738).

Almost surely, 2^124120253455 is an apocalyptic number.

124120253455 is a deficient number, since it is larger than the sum of its proper divisors (42327486353).

124120253455 is a wasteful number, since it uses less digits than its factorization.

124120253455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55042298.

The product of its (nonzero) digits is 48000, while the sum is 34.

Adding to 124120253455 its reverse (554352021421), we get a palindrome (678472274876).

The spelling of 124120253455 in words is "one hundred twenty-four billion, one hundred twenty million, two hundred fifty-three thousand, four hundred fifty-five".