520203231344 has 10 divisors (see below), whose sum is σ = 1007893760760. Its totient is φ = 260101615664.

The previous prime is 520203231293. The next prime is 520203231433. The reversal of 520203231344 is 443132302025.

It is a happy number.

It is a super-2 number, since 2×520203231344² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16256350964 + ... + 16256350995.

It is an arithmetic number, because the mean of its divisors is an integer number (100789376076).

Almost surely, 2^520203231344 is an apocalyptic number.

It is an amenable number.

520203231344 is a deficient number, since it is larger than the sum of its proper divisors (487690529416).

520203231344 is a wasteful number, since it uses less digits than its factorization.

520203231344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32512701967 (or 32512701961 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 29.

Adding to 520203231344 its reverse (443132302025), we get a palindrome (963335533369).

The spelling of 520203231344 in words is "five hundred twenty billion, two hundred three million, two hundred thirty-one thousand, three hundred forty-four".