210126320052 has 24 divisors (see below), whose sum is σ = 534866996832. Its totient is φ = 63674642400.

The previous prime is 210126319999. The next prime is 210126320071. The reversal of 210126320052 is 250023621012.

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, 795932899 + ... + 795933162.

It is an arithmetic number, because the mean of its divisors is an integer number (22286124868).

Almost surely, 2^210126320052 is an apocalyptic number.

210126320052 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

210126320052 is an abundant number, since it is smaller than the sum of its proper divisors (324740676780).

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

210126320052 is a wasteful number, since it uses less digits than its factorization.

210126320052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1591866079 (or 1591866077 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

Adding to 210126320052 its reverse (250023621012), we get a palindrome (460149941064).

The spelling of 210126320052 in words is "two hundred ten billion, one hundred twenty-six million, three hundred twenty thousand, fifty-two".