321404441041423 has 4 divisors (see below), whose sum is σ = 321452390390368. Its totient is φ = 321356491692480.

The previous prime is 321404441041417. The next prime is 321404441041427. The reversal of 321404441041423 is 324140144404123.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 321404441041423 - 2¹³ = 321404441033231 is a prime.

It is a super-2 number, since 2×321404441041423² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321404441041427) 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, 23974664418 + ... + 23974677823.

It is an arithmetic number, because the mean of its divisors is an integer number (80363097597592).

Almost surely, 2^{321404441041423} is an apocalyptic number.

321404441041423 is a deficient number, since it is larger than the sum of its proper divisors (47949348945).

321404441041423 is an equidigital number, since it uses as much as digits as its factorization.

321404441041423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47949348944.

The product of its (nonzero) digits is 147456, while the sum is 37.

Adding to 321404441041423 its reverse (324140144404123), we get a palindrome (645544585445546).

The spelling of 321404441041423 in words is "three hundred twenty-one trillion, four hundred four billion, four hundred forty-one million, forty-one thousand, four hundred twenty-three".