210124243242 has 12 divisors (see below), whose sum is σ = 455269193730. Its totient is φ = 70041414408.

The previous prime is 210124243207. The next prime is 210124243289. The reversal of 210124243242 is 242342421012.

It is a happy number.

210124243242 is a `hidden beast` number, since 210 + 1 + 2 + 424 + 3 + 24 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 179200669041 + 30923574201 = 423321^2 + 175851^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5836784517 + ... + 5836784552.

Almost surely, 2^210124243242 is an apocalyptic number.

210124243242 is an abundant number, since it is smaller than the sum of its proper divisors (245144950488).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

210124243242 is a wasteful number, since it uses less digits than its factorization.

210124243242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11673569077 (or 11673569074 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

Adding to 210124243242 its reverse (242342421012), we get a palindrome (452466664254).

The spelling of 210124243242 in words is "two hundred ten billion, one hundred twenty-four million, two hundred forty-three thousand, two hundred forty-two".