210543543130542 has 16 divisors (see below), whose sum is σ = 421087371911760. Its totient is φ = 70181133435072.

The previous prime is 210543543130463. The next prime is 210543543130553. The reversal of 210543543130542 is 245031345345012.

It is a junction number, because it is equal to n+sod(n) for n = 210543543130494 and 210543543130503.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1639567 + ... + 20585802.

It is an arithmetic number, because the mean of its divisors is an integer number (26317960744485).

Almost surely, 2^{210543543130542} is an apocalyptic number.

210543543130542 is an abundant number, since it is smaller than the sum of its proper divisors (210543828781218).

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

210543543130542 is a wasteful number, since it uses less digits than its factorization.

210543543130542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23804227.

The product of its (nonzero) digits is 864000, while the sum is 42.

Adding to 210543543130542 its reverse (245031345345012), we get a palindrome (455574888475554).

The spelling of 210543543130542 in words is "two hundred ten trillion, five hundred forty-three billion, five hundred forty-three million, one hundred thirty thousand, five hundred forty-two".