124242521313 has 32 divisors (see below), whose sum is σ = 169149606912. Its totient is φ = 81102974400.

The previous prime is 124242521279. The next prime is 124242521327. The reversal of 124242521313 is 313125242421.

It is a happy number.

It is not a de Polignac number, because 124242521313 - 2¹⁰ = 124242520289 is a prime.

It is a super-2 number, since 2×124242521313² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (124242521363) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18875683 + ... + 18882263.

It is an arithmetic number, because the mean of its divisors is an integer number (5285925216).

Almost surely, 2^124242521313 is an apocalyptic number.

It is an amenable number.

124242521313 is a deficient number, since it is larger than the sum of its proper divisors (44907085599).

124242521313 is a wasteful number, since it uses less digits than its factorization.

124242521313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7365.

The product of its digits is 11520, while the sum is 30.

Adding to 124242521313 its reverse (313125242421), we get a palindrome (437367763734).

The spelling of 124242521313 in words is "one hundred twenty-four billion, two hundred forty-two million, five hundred twenty-one thousand, three hundred thirteen".