124984821213 has 18 divisors (see below), whose sum is σ = 210008509854. Its totient is φ = 71419897584.

The previous prime is 124984821211. The next prime is 124984821229. The reversal of 124984821213 is 312128489421.

124984821213 is a `hidden beast` number, since 1 + 2 + 49 + 8 + 482 + 121 + 3 = 666.

It can be written as a sum of positive squares in only one way, i.e., 114624227844 + 10360593369 = 338562^2 + 101787^2 .

It is not a de Polignac number, because 124984821213 - 2¹ = 124984821211 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124984821211) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 141705706 + ... + 141706587.

Almost surely, 2^124984821213 is an apocalyptic number.

It is an amenable number.

124984821213 is a deficient number, since it is larger than the sum of its proper divisors (85023688641).

124984821213 is a wasteful number, since it uses less digits than its factorization.

124984821213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283412313 (or 283412303 counting only the distinct ones).

The product of its digits is 221184, while the sum is 45.

The spelling of 124984821213 in words is "one hundred twenty-four billion, nine hundred eighty-four million, eight hundred twenty-one thousand, two hundred thirteen".