124010410021 has 4 divisors (see below), whose sum is σ = 126350229132. Its totient is φ = 121670590912.

The previous prime is 124010409979. The next prime is 124010410039. The reversal of 124010410021 is 120014010421.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 34840089025 + 89170320996 = 186655^2 + 298614^2 .

It is a cyclic number.

It is not a de Polignac number, because 124010410021 - 2¹³ = 124010401829 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 124010409977 and 124010410004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124013410021) 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 3 ways as a sum of consecutive naturals, for example, 1169909476 + ... + 1169909581.

It is an arithmetic number, because the mean of its divisors is an integer number (31587557283).

Almost surely, 2^124010410021 is an apocalyptic number.

It is an amenable number.

124010410021 is a deficient number, since it is larger than the sum of its proper divisors (2339819111).

124010410021 is an equidigital number, since it uses as much as digits as its factorization.

124010410021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2339819110.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 124010410021 its reverse (120014010421), we get a palindrome (244024420442).

The spelling of 124010410021 in words is "one hundred twenty-four billion, ten million, four hundred ten thousand, twenty-one".