206051531124 has 24 divisors (see below), whose sum is σ = 484245808480. Its totient is φ = 68189714784.

The previous prime is 206051531123. The next prime is 206051531143. The reversal of 206051531124 is 421135150602.

It is a junction number, because it is equal to n+sod(n) for n = 206051531091 and 206051531100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206051531123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61764379 + ... + 61767714.

Almost surely, 2^206051531124 is an apocalyptic number.

It is an amenable number.

206051531124 is an abundant number, since it is smaller than the sum of its proper divisors (278194277356).

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

206051531124 is a wasteful number, since it uses less digits than its factorization.

206051531124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123532239 (or 123532237 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 30.

Adding to 206051531124 its reverse (421135150602), we get a palindrome (627186681726).

The spelling of 206051531124 in words is "two hundred six billion, fifty-one million, five hundred thirty-one thousand, one hundred twenty-four".