521313143235310 has 32 divisors (see below), whose sum is σ = 997341036456960. Its totient is φ = 195632280213408.

The previous prime is 521313143235299. The next prime is 521313143235323. The reversal of 521313143235310 is 13532341313125.

It is a super-2 number, since 2×521313143235310² (a number of 30 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 521313143235310.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13319171622 + ... + 13319210761.

It is an arithmetic number, because the mean of its divisors is an integer number (31166907389280).

Almost surely, 2^{521313143235310} is an apocalyptic number.

521313143235310 is a deficient number, since it is larger than the sum of its proper divisors (476027893221650).

521313143235310 is a wasteful number, since it uses less digits than its factorization.

521313143235310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26638382512.

The product of its (nonzero) digits is 97200, while the sum is 37.

Adding to 521313143235310 its reverse (13532341313125), we get a palindrome (534845484548435).

The spelling of 521313143235310 in words is "five hundred twenty-one trillion, three hundred thirteen billion, one hundred forty-three million, two hundred thirty-five thousand, three hundred ten".