520311232133 has 16 divisors (see below), whose sum is σ = 648760337280. Its totient is φ = 405399436800.

The previous prime is 520311232081. The next prime is 520311232151. The reversal of 520311232133 is 331232113025.

It is a cyclic number.

It is not a de Polignac number, because 520311232133 - 2³⁴ = 503131362949 is a prime.

It is a super-2 number, since 2×520311232133² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520311232163) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 528173 + ... + 1148733.

It is an arithmetic number, because the mean of its divisors is an integer number (40547521080).

Almost surely, 2^520311232133 is an apocalyptic number.

It is an amenable number.

520311232133 is a deficient number, since it is larger than the sum of its proper divisors (128449105147).

520311232133 is a wasteful number, since it uses less digits than its factorization.

520311232133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 631468.

The product of its (nonzero) digits is 3240, while the sum is 26.

Adding to 520311232133 its reverse (331232113025), we get a palindrome (851543345158).

The spelling of 520311232133 in words is "five hundred twenty billion, three hundred eleven million, two hundred thirty-two thousand, one hundred thirty-three".