520022330143231 has 4 divisors (see below), whose sum is σ = 521293778383600. Its totient is φ = 518750881902864.

The previous prime is 520022330143193. The next prime is 520022330143247. The reversal of 520022330143231 is 132341033220025.

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 520022330143231 - 2²¹ = 520022328046079 is a prime.

It is a super-2 number, since 2×520022330143231² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 520022330143193 and 520022330143202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520022330143531) 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, 635724119571 + ... + 635724120388.

It is an arithmetic number, because the mean of its divisors is an integer number (130323444595900).

Almost surely, 2^{520022330143231} is an apocalyptic number.

520022330143231 is a deficient number, since it is larger than the sum of its proper divisors (1271448240369).

520022330143231 is a wasteful number, since it uses less digits than its factorization.

520022330143231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1271448240368.

The product of its (nonzero) digits is 25920, while the sum is 31.

Adding to 520022330143231 its reverse (132341033220025), we get a palindrome (652363363363256).

The spelling of 520022330143231 in words is "five hundred twenty trillion, twenty-two billion, three hundred thirty million, one hundred forty-three thousand, two hundred thirty-one".