210344125134 has 128 divisors (see below), whose sum is σ = 505310980608. Its totient is φ = 57526709760.

The previous prime is 210344125133. The next prime is 210344125157. The reversal of 210344125134 is 431521443012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210344125133) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 13315989 + ... + 13331775.

It is an arithmetic number, because the mean of its divisors is an integer number (3947742036).

Almost surely, 2^210344125134 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 210344125134, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (252655490304).

210344125134 is an abundant number, since it is smaller than the sum of its proper divisors (294966855474).

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

210344125134 is a wasteful number, since it uses less digits than its factorization.

210344125134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16162.

The product of its (nonzero) digits is 11520, while the sum is 30.

Adding to 210344125134 its reverse (431521443012), we get a palindrome (641865568146).

The spelling of 210344125134 in words is "two hundred ten billion, three hundred forty-four million, one hundred twenty-five thousand, one hundred thirty-four".