321412555533 has 4 divisors (see below), whose sum is σ = 428550074048. Its totient is φ = 214275037020.

The previous prime is 321412555397. The next prime is 321412555553. The reversal of 321412555533 is 335555214123.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 321412555533 - 2³⁷ = 183973602061 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 321412555491 and 321412555500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321412555553) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53568759253 + ... + 53568759258.

It is an arithmetic number, because the mean of its divisors is an integer number (107137518512).

Almost surely, 2^321412555533 is an apocalyptic number.

It is an amenable number.

321412555533 is a deficient number, since it is larger than the sum of its proper divisors (107137518515).

321412555533 is a wasteful number, since it uses less digits than its factorization.

321412555533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107137518514.

The product of its digits is 270000, while the sum is 39.

Adding to 321412555533 its reverse (335555214123), we get a palindrome (656967769656).

The spelling of 321412555533 in words is "three hundred twenty-one billion, four hundred twelve million, five hundred fifty-five thousand, five hundred thirty-three".