321404212043311 has 4 divisors (see below), whose sum is σ = 321768203224312. Its totient is φ = 321040220862312.

The previous prime is 321404212043293. The next prime is 321404212043329. The reversal of 321404212043311 is 113340212404123.

It is a happy number.

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

It is an interprime number because it is at equal distance from previous prime (321404212043293) and next prime (321404212043329).

It is a cyclic number.

It is not a de Polignac number, because 321404212043311 - 2⁵ = 321404212043279 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 (321404212046311) 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, 181995589176 + ... + 181995590941.

It is an arithmetic number, because the mean of its divisors is an integer number (80442050806078).

Almost surely, 2^{321404212043311} is an apocalyptic number.

321404212043311 is a deficient number, since it is larger than the sum of its proper divisors (363991181001).

321404212043311 is an equidigital number, since it uses as much as digits as its factorization.

321404212043311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363991181000.

The product of its (nonzero) digits is 13824, while the sum is 31.

Adding to 321404212043311 its reverse (113340212404123), we get a palindrome (434744424447434).

The spelling of 321404212043311 in words is "three hundred twenty-one trillion, four hundred four billion, two hundred twelve million, forty-three thousand, three hundred eleven".