321513143412 has 24 divisors (see below), whose sum is σ = 750494984512. Its totient is φ = 107128526400.

The previous prime is 321513143389. The next prime is 321513143437. The reversal of 321513143412 is 214341315123.

It is a super-3 number, since 3×321513143412³ (a number of 35 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 321513143412.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5283664 + ... + 5344167.

Almost surely, 2^321513143412 is an apocalyptic number.

It is an amenable number.

321513143412 is an abundant number, since it is smaller than the sum of its proper divisors (428981841100).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

321513143412 is a wasteful number, since it uses less digits than its factorization.

321513143412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10630359 (or 10630357 counting only the distinct ones).

The product of its digits is 8640, while the sum is 30.

Adding to 321513143412 its reverse (214341315123), we get a palindrome (535854458535).

The spelling of 321513143412 in words is "three hundred twenty-one billion, five hundred thirteen million, one hundred forty-three thousand, four hundred twelve".