322203430981 has 2 divisors, whose sum is σ = 322203430982. Its totient is φ = 322203430980.

The previous prime is 322203430961. The next prime is 322203431047. The reversal of 322203430981 is 189034302223.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 269767010881 + 52436420100 = 519391^2 + 228990^2 .

It is a cyclic number.

It is not a de Polignac number, because 322203430981 - 2²⁵ = 322169876549 is a prime.

It is a super-2 number, since 2×322203430981² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 322203430981.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (322203430931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 161101715490 + 161101715491.

It is an arithmetic number, because the mean of its divisors is an integer number (161101715491).

Almost surely, 2^322203430981 is an apocalyptic number.

It is an amenable number.

322203430981 is a deficient number, since it is larger than the sum of its proper divisors (1).

322203430981 is an equidigital number, since it uses as much as digits as its factorization.

322203430981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 62208, while the sum is 37.

The spelling of 322203430981 in words is "three hundred twenty-two billion, two hundred three million, four hundred thirty thousand, nine hundred eighty-one".