2142310321021 has 8 divisors (see below), whose sum is σ = 2308285973504. Its totient is φ = 1976503604400.

The previous prime is 2142310320989. The next prime is 2142310321087. The reversal of 2142310321021 is 1201230132412.

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

It is not a de Polignac number, because 2142310321021 - 2⁵ = 2142310320989 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2142310320983 and 2142310321001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2142310321321) 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, 42207621 + ... + 42258346.

It is an arithmetic number, because the mean of its divisors is an integer number (288535746688).

Almost surely, 2^{2142310321021} is an apocalyptic number.

It is an amenable number.

2142310321021 is a deficient number, since it is larger than the sum of its proper divisors (165975652483).

2142310321021 is a wasteful number, since it uses less digits than its factorization.

2142310321021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84467931.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 2142310321021 its reverse (1201230132412), we get a palindrome (3343540453433).

The spelling of 2142310321021 in words is "two trillion, one hundred forty-two billion, three hundred ten million, three hundred twenty-one thousand, twenty-one".