210113101209 has 32 divisors (see below), whose sum is σ = 310800286080. Its totient is φ = 125184729600.

The previous prime is 210113101199. The next prime is 210113101273. The reversal of 210113101209 is 902101311012.

It is a happy number.

It is not a de Polignac number, because 210113101209 - 2¹² = 210113097113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (210113101309) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3750597 + ... + 3806205.

It is an arithmetic number, because the mean of its divisors is an integer number (9712508940).

Almost surely, 2^210113101209 is an apocalyptic number.

It is an amenable number.

210113101209 is a deficient number, since it is larger than the sum of its proper divisors (100687184871).

210113101209 is a wasteful number, since it uses less digits than its factorization.

210113101209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57561.

The product of its (nonzero) digits is 108, while the sum is 21.

The spelling of 210113101209 in words is "two hundred ten billion, one hundred thirteen million, one hundred one thousand, two hundred nine".