124443213021 has 24 divisors (see below), whose sum is σ = 182033966400. Its totient is φ = 81914976000.

The previous prime is 124443212989. The next prime is 124443213031. The reversal of 124443213021 is 120312344421.

124443213021 is a `hidden beast` number, since 1 + 2 + 4 + 443 + 213 + 0 + 2 + 1 = 666.

It is not a de Polignac number, because 124443213021 - 2⁵ = 124443212989 is a prime.

It is a super-2 number, since 2×124443213021² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124443213031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30580 + ... + 499821.

It is an arithmetic number, because the mean of its divisors is an integer number (7584748600).

Almost surely, 2^124443213021 is an apocalyptic number.

It is an amenable number.

124443213021 is a deficient number, since it is larger than the sum of its proper divisors (57590753379).

124443213021 is a wasteful number, since it uses less digits than its factorization.

124443213021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 530737 (or 530734 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 124443213021 its reverse (120312344421), we get a palindrome (244755557442).

The spelling of 124443213021 in words is "one hundred twenty-four billion, four hundred forty-three million, two hundred thirteen thousand, twenty-one".