321440432212019 has 2 divisors, whose sum is σ = 321440432212020. Its totient is φ = 321440432212018.

The previous prime is 321440432211991. The next prime is 321440432212057. The reversal of 321440432212019 is 910212234044123.

It is an a-pointer prime, because the next prime (321440432212057) can be obtained adding 321440432212019 to its sum of digits (38).

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-321440432212019 is a prime.

It is a super-2 number, since 2×321440432212019² (a number of 30 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (321440432212619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160720216106009 + 160720216106010.

It is an arithmetic number, because the mean of its divisors is an integer number (160720216106010).

Almost surely, 2^{321440432212019} is an apocalyptic number.

321440432212019 is a deficient number, since it is larger than the sum of its proper divisors (1).

321440432212019 is an equidigital number, since it uses as much as digits as its factorization.

321440432212019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 82944, while the sum is 38.

The spelling of 321440432212019 in words is "three hundred twenty-one trillion, four hundred forty billion, four hundred thirty-two million, two hundred twelve thousand, nineteen".