4720123 has 4 divisors (see below), whose sum is σ = 4762008. Its totient is φ = 4678240.

The previous prime is 4720099. The next prime is 4720141. The reversal of 4720123 is 3210274.

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-4720123 is a prime.

It is a super-2 number, since 2×4720123² = 44559122270258, which contains 22 as substring.

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 4720123.

It is not an unprimeable number, because it can be changed into a prime (4720193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20773 + ... + 20998.

It is an arithmetic number, because the mean of its divisors is an integer number (1190502).

Almost surely, 2^4720123 is an apocalyptic number.

4720123 is a deficient number, since it is larger than the sum of its proper divisors (41885).

4720123 is a wasteful number, since it uses less digits than its factorization.

4720123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41884.

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 4720123 is about 2172.5844057251. The cubic root of 4720123 is about 167.7455876173.

Adding to 4720123 its reverse (3210274), we get a palindrome (7930397).

The spelling of 4720123 in words is "four million, seven hundred twenty thousand, one hundred twenty-three".