2142311121209 has 8 divisors (see below), whose sum is σ = 2448523943808. Its totient is φ = 1836140392800.

The previous prime is 2142311121169. The next prime is 2142311121217. The reversal of 2142311121209 is 9021211132412.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2142311121209 - 2⁸ = 2142311120953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2142311121229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10414412 + ... + 10618125.

It is an arithmetic number, because the mean of its divisors is an integer number (306065492976).

Almost surely, 2^{2142311121209} is an apocalyptic number.

It is an amenable number.

2142311121209 is a deficient number, since it is larger than the sum of its proper divisors (306212822599).

2142311121209 is a wasteful number, since it uses less digits than its factorization.

2142311121209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21047095.

The product of its (nonzero) digits is 1728, while the sum is 29.

The spelling of 2142311121209 in words is "two trillion, one hundred forty-two billion, three hundred eleven million, one hundred twenty-one thousand, two hundred nine".