2143404200311 has 4 divisors (see below), whose sum is σ = 2338259127624. Its totient is φ = 1948549273000.

The previous prime is 2143404200293. The next prime is 2143404200339. The reversal of 2143404200311 is 1130024043412.

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

It is not a de Polignac number, because 2143404200311 - 2⁵ = 2143404200279 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2143404200611) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 97427463640 + ... + 97427463661.

It is an arithmetic number, because the mean of its divisors is an integer number (584564781906).

Almost surely, 2^{2143404200311} is an apocalyptic number.

2143404200311 is a deficient number, since it is larger than the sum of its proper divisors (194854927313).

2143404200311 is a wasteful number, since it uses less digits than its factorization.

2143404200311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194854927312.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 2143404200311 its reverse (1130024043412), we get a palindrome (3273428243723).

The spelling of 2143404200311 in words is "two trillion, one hundred forty-three billion, four hundred four million, two hundred thousand, three hundred eleven".