4320020023 has 4 divisors (see below), whose sum is σ = 4712749128. Its totient is φ = 3927290920.

The previous prime is 4320020009. The next prime is 4320020051. The reversal of 4320020023 is 3200200234.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4320020023 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4320019979 and 4320020006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4320020323) 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, 196364536 + ... + 196364557.

It is an arithmetic number, because the mean of its divisors is an integer number (1178187282).

Almost surely, 2^4320020023 is an apocalyptic number.

4320020023 is a deficient number, since it is larger than the sum of its proper divisors (392729105).

4320020023 is a wasteful number, since it uses less digits than its factorization.

4320020023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392729104.

The product of its (nonzero) digits is 288, while the sum is 16.

The square root of 4320020023 is about 65726.8592205652. The cubic root of 4320020023 is about 1628.6530861931.

Adding to 4320020023 its reverse (3200200234), we get a palindrome (7520220257).

The spelling of 4320020023 in words is "four billion, three hundred twenty million, twenty thousand, twenty-three".