124842221783 has 4 divisors (see below), whose sum is σ = 124889855928. Its totient is φ = 124794587640.

The previous prime is 124842221767. The next prime is 124842221789. The reversal of 124842221783 is 387122248421.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 387122248421 = 29 ⋅13349043049.

It is a cyclic number.

It is not a de Polignac number, because 124842221783 - 2⁴ = 124842221767 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124842221789) 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 3 ways as a sum of consecutive naturals, for example, 23813141 + ... + 23818382.

It is an arithmetic number, because the mean of its divisors is an integer number (31222463982).

Almost surely, 2^124842221783 is an apocalyptic number.

124842221783 is a deficient number, since it is larger than the sum of its proper divisors (47634145).

124842221783 is an equidigital number, since it uses as much as digits as its factorization.

124842221783 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47634144.

The product of its digits is 344064, while the sum is 44.

The spelling of 124842221783 in words is "one hundred twenty-four billion, eight hundred forty-two million, two hundred twenty-one thousand, seven hundred eighty-three".