520203023 has 8 divisors (see below), whose sum is σ = 524158128. Its totient is φ = 516263104.

The previous prime is 520203011. The next prime is 520203053. The reversal of 520203023 is 320302025.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 520203023 - 2⁴ = 520203007 is a prime.

It is a super-2 number, since 2×520203023² = 541222370276677058, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 520202992 and 520203010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520203053) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70340 + ... + 77382.

It is an arithmetic number, because the mean of its divisors is an integer number (65519766).

Almost surely, 2^520203023 is an apocalyptic number.

520203023 is a deficient number, since it is larger than the sum of its proper divisors (3955105).

520203023 is a wasteful number, since it uses less digits than its factorization.

520203023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7593.

The product of its (nonzero) digits is 360, while the sum is 17.

The square root of 520203023 is about 22807.9596413182. The cubic root of 520203023 is about 804.2497919220.

Adding to 520203023 its reverse (320302025), we get a palindrome (840505048).

The spelling of 520203023 in words is "five hundred twenty million, two hundred three thousand, twenty-three".