2143420323001 has 4 divisors (see below), whose sum is σ = 2143431825012. Its totient is φ = 2143408820992.

The previous prime is 2143420322999. The next prime is 2143420323029. The reversal of 2143420323001 is 1003230243412.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 148826208400 + 1994594114601 = 385780^2 + 1412301^2 .

It is a cyclic number.

It is not a de Polignac number, because 2143420323001 - 2¹ = 2143420322999 is a prime.

It is a super-2 number, since 2×2143420323001² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2143420323041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5466796 + ... + 5845741.

It is an arithmetic number, because the mean of its divisors is an integer number (535857956253).

Almost surely, 2^{2143420323001} is an apocalyptic number.

It is an amenable number.

2143420323001 is a deficient number, since it is larger than the sum of its proper divisors (11502011).

2143420323001 is a wasteful number, since it uses less digits than its factorization.

2143420323001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11502010.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 2143420323001 its reverse (1003230243412), we get a palindrome (3146650566413).

The spelling of 2143420323001 in words is "two trillion, one hundred forty-three billion, four hundred twenty million, three hundred twenty-three thousand, one".