321223512041 has 4 divisors (see below), whose sum is σ = 332300184900. Its totient is φ = 310146839184.

The previous prime is 321223511969. The next prime is 321223512061. The reversal of 321223512041 is 140215322123.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 140215322123 = 211 ⋅664527593.

It can be written as a sum of positive squares in 2 ways, for example, as 201942384400 + 119281127641 = 449380^2 + 345371^2 .

It is a cyclic number.

It is not a de Polignac number, because 321223512041 - 2²² = 321219317737 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 321223512041.

It is not an unprimeable number, because it can be changed into a prime (321223512061) 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, 5538336386 + ... + 5538336443.

It is an arithmetic number, because the mean of its divisors is an integer number (83075046225).

Almost surely, 2^321223512041 is an apocalyptic number.

It is an amenable number.

321223512041 is a deficient number, since it is larger than the sum of its proper divisors (11076672859).

321223512041 is a wasteful number, since it uses less digits than its factorization.

321223512041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11076672858.

The product of its (nonzero) digits is 2880, while the sum is 26.

Adding to 321223512041 its reverse (140215322123), we get a palindrome (461438834164).

The spelling of 321223512041 in words is "three hundred twenty-one billion, two hundred twenty-three million, five hundred twelve thousand, forty-one".