2143242023 has 4 divisors (see below), whose sum is σ = 2308106808. Its totient is φ = 1978377240.

The previous prime is 2143242007. The next prime is 2143242107. The reversal of 2143242023 is 3202423412.

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 2143242023 - 2⁴ = 2143242007 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2143242023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2143242623) 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, 82432373 + ... + 82432398.

It is an arithmetic number, because the mean of its divisors is an integer number (577026702).

Almost surely, 2^2143242023 is an apocalyptic number.

2143242023 is a deficient number, since it is larger than the sum of its proper divisors (164864785).

2143242023 is a wasteful number, since it uses less digits than its factorization.

2143242023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164864784.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 2143242023 is about 46295.1619826521. The cubic root of 2143242023 is about 1289.3091714029.

Adding to 2143242023 its reverse (3202423412), we get a palindrome (5345665435).

The spelling of 2143242023 in words is "two billion, one hundred forty-three million, two hundred forty-two thousand, twenty-three".