620117123 has 4 divisors (see below), whose sum is σ = 620216520. Its totient is φ = 620017728.

The previous prime is 620117089. The next prime is 620117129. The reversal of 620117123 is 321711026.

620117123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 620117123 - 2²⁰ = 619068547 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (620117129) 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, 39665 + ... + 53042.

It is an arithmetic number, because the mean of its divisors is an integer number (155054130).

Almost surely, 2^620117123 is an apocalyptic number.

620117123 is a deficient number, since it is larger than the sum of its proper divisors (99397).

620117123 is an equidigital number, since it uses as much as digits as its factorization.

620117123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99396.

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 620117123 is about 24902.1509713519. The cubic root of 620117123 is about 852.7555890358.

Adding to 620117123 its reverse (321711026), we get a palindrome (941828149).

The spelling of 620117123 in words is "six hundred twenty million, one hundred seventeen thousand, one hundred twenty-three".