124340304221 has 24 divisors (see below), whose sum is σ = 146153843640. Its totient is φ = 105463680000.

The previous prime is 124340304161. The next prime is 124340304251. The reversal of 124340304221 is 122403043421.

It can be written as a sum of positive squares in 4 ways, for example, as 36457701721 + 87882602500 = 190939^2 + 296450^2 .

It is not a de Polignac number, because 124340304221 - 2²² = 124336109917 is a prime.

It is a super-2 number, since 2×124340304221² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124340304251) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10530521 + ... + 10542321.

It is an arithmetic number, because the mean of its divisors is an integer number (6089743485).

Almost surely, 2^124340304221 is an apocalyptic number.

It is an amenable number.

124340304221 is a deficient number, since it is larger than the sum of its proper divisors (21813539419).

124340304221 is a wasteful number, since it uses less digits than its factorization.

124340304221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14045 (or 14038 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 124340304221 its reverse (122403043421), we get a palindrome (246743347642).

The spelling of 124340304221 in words is "one hundred twenty-four billion, three hundred forty million, three hundred four thousand, two hundred twenty-one".