210251123005 has 64 divisors (see below), whose sum is σ = 321317568000. Its totient is φ = 130926620160.

The previous prime is 210251122951. The next prime is 210251123113. The reversal of 210251123005 is 500321152012.

It is not a de Polignac number, because 210251123005 - 2²⁷ = 210116905277 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 19482151 + ... + 19492939.

It is an arithmetic number, because the mean of its divisors is an integer number (5020587000).

Almost surely, 2^210251123005 is an apocalyptic number.

It is an amenable number.

210251123005 is a deficient number, since it is larger than the sum of its proper divisors (111066444995).

210251123005 is a wasteful number, since it uses less digits than its factorization.

210251123005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11859 (or 11845 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 22.

Adding to 210251123005 its reverse (500321152012), we get a palindrome (710572275017).

The spelling of 210251123005 in words is "two hundred ten billion, two hundred fifty-one million, one hundred twenty-three thousand, five".