321110040000443 has 4 divisors (see below), whose sum is σ = 339998865882840. Its totient is φ = 302221214118048.

The previous prime is 321110040000419. The next prime is 321110040000467. The reversal of 321110040000443 is 344000040011123.

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 (321110040000419) and next prime (321110040000467).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-321110040000443 is a prime.

It is a super-2 number, since 2×321110040000443² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (321110040000403) 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, 9444412941173 + ... + 9444412941206.

It is an arithmetic number, because the mean of its divisors is an integer number (84999716470710).

Almost surely, 2^{321110040000443} is an apocalyptic number.

321110040000443 is a deficient number, since it is larger than the sum of its proper divisors (18888825882397).

321110040000443 is a wasteful number, since it uses less digits than its factorization.

321110040000443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18888825882396.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 321110040000443 its reverse (344000040011123), we get a palindrome (665110080011566).

The spelling of 321110040000443 in words is "three hundred twenty-one trillion, one hundred ten billion, forty million, four hundred forty-three", and thus it is an aban number.