321513143413 has 32 divisors (see below), whose sum is σ = 422582059008. Its totient is φ = 237289564800.

The previous prime is 321513143389. The next prime is 321513143437. The reversal of 321513143413 is 314341315123.

It is an interprime number because it is at equal distance from previous prime (321513143389) and next prime (321513143437).

It is a cyclic number.

It is not a de Polignac number, because 321513143413 - 2²¹ = 321511046261 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321513140413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1320720 + ... + 1545097.

It is an arithmetic number, because the mean of its divisors is an integer number (13205689344).

Almost surely, 2^321513143413 is an apocalyptic number.

It is an amenable number.

321513143413 is a deficient number, since it is larger than the sum of its proper divisors (101068915595).

321513143413 is a wasteful number, since it uses less digits than its factorization.

321513143413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2865913.

The product of its digits is 12960, while the sum is 31.

Adding to 321513143413 its reverse (314341315123), we get a palindrome (635854458536).

The spelling of 321513143413 in words is "three hundred twenty-one billion, five hundred thirteen million, one hundred forty-three thousand, four hundred thirteen".