2321142440143 has 4 divisors (see below), whose sum is σ = 2321146743400. Its totient is φ = 2321138136888.

The previous prime is 2321142440137. The next prime is 2321142440147. The reversal of 2321142440143 is 3410442411232.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 2321142440143 - 2⁹ = 2321142439631 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 (2321142440147) 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, 1203180 + ... + 2467777.

It is an arithmetic number, because the mean of its divisors is an integer number (580286685850).

Almost surely, 2^{2321142440143} is an apocalyptic number.

2321142440143 is a deficient number, since it is larger than the sum of its proper divisors (4303257).

2321142440143 is an equidigital number, since it uses as much as digits as its factorization.

2321142440143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4303256.

The product of its (nonzero) digits is 18432, while the sum is 31.

Adding to 2321142440143 its reverse (3410442411232), we get a palindrome (5731584851375).

The spelling of 2321142440143 in words is "two trillion, three hundred twenty-one billion, one hundred forty-two million, four hundred forty thousand, one hundred forty-three".