520231203111 has 8 divisors (see below), whose sum is σ = 693657471744. Its totient is φ = 346812868280.

The previous prime is 520231203097. The next prime is 520231203131. The reversal of 520231203111 is 111302132025.

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 520231203111 - 2¹⁰ = 520231202087 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520231203131) 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, 1828725 + ... + 2093966.

It is an arithmetic number, because the mean of its divisors is an integer number (86707183968).

Almost surely, 2^520231203111 is an apocalyptic number.

520231203111 is a deficient number, since it is larger than the sum of its proper divisors (173426268633).

520231203111 is a wasteful number, since it uses less digits than its factorization.

520231203111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3966901.

The product of its (nonzero) digits is 360, while the sum is 21.

Adding to 520231203111 its reverse (111302132025), we get a palindrome (631533335136).

The spelling of 520231203111 in words is "five hundred twenty billion, two hundred thirty-one million, two hundred three thousand, one hundred eleven".