321211553413 has 8 divisors (see below), whose sum is σ = 324342091008. Its totient is φ = 318081246384.

The previous prime is 321211553381. The next prime is 321211553419. The reversal of 321211553413 is 314355112123.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 321211553413 - 2⁵ = 321211553381 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321211553419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4446420 + ... + 4518082.

It is an arithmetic number, because the mean of its divisors is an integer number (40542761376).

Almost surely, 2^321211553413 is an apocalyptic number.

It is an amenable number.

321211553413 is a deficient number, since it is larger than the sum of its proper divisors (3130537595).

321211553413 is a wasteful number, since it uses less digits than its factorization.

321211553413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115283.

The product of its digits is 10800, while the sum is 31.

Adding to 321211553413 its reverse (314355112123), we get a palindrome (635566665536).

The spelling of 321211553413 in words is "three hundred twenty-one billion, two hundred eleven million, five hundred fifty-three thousand, four hundred thirteen".