124004010521 has 8 divisors (see below), whose sum is σ = 125406275040. Its totient is φ = 122601945312.

The previous prime is 124004010497. The next prime is 124004010593. The reversal of 124004010521 is 125010400421.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 124004010521 - 2⁶ = 124004010457 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 124004010493 and 124004010502.

It is not an unprimeable number, because it can be changed into a prime (124004010821) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1457666 + ... + 1540388.

It is an arithmetic number, because the mean of its divisors is an integer number (15675784380).

Almost surely, 2^124004010521 is an apocalyptic number.

It is an amenable number.

124004010521 is a deficient number, since it is larger than the sum of its proper divisors (1402264519).

124004010521 is an equidigital number, since it uses as much as digits as its factorization.

124004010521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99655.

The product of its (nonzero) digits is 320, while the sum is 20.

Adding to 124004010521 its reverse (125010400421), we get a palindrome (249014410942).

The spelling of 124004010521 in words is "one hundred twenty-four billion, four million, ten thousand, five hundred twenty-one".