321435212352011 has 4 divisors (see below), whose sum is σ = 338352855107400. Its totient is φ = 304517569596624.

The previous prime is 321435212351989. The next prime is 321435212352077. The reversal of 321435212352011 is 110253212534123.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-321435212352011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (321435212352911) 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, 8458821377666 + ... + 8458821377703.

It is an arithmetic number, because the mean of its divisors is an integer number (84588213776850).

Almost surely, 2^{321435212352011} is an apocalyptic number.

321435212352011 is a deficient number, since it is larger than the sum of its proper divisors (16917642755389).

321435212352011 is a wasteful number, since it uses less digits than its factorization.

321435212352011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16917642755388.

The product of its (nonzero) digits is 43200, while the sum is 35.

Adding to 321435212352011 its reverse (110253212534123), we get a palindrome (431688424886134).

The spelling of 321435212352011 in words is "three hundred twenty-one trillion, four hundred thirty-five billion, two hundred twelve million, three hundred fifty-two thousand, eleven".