323211130009981 has 2 divisors, whose sum is σ = 323211130009982. Its totient is φ = 323211130009980.

The previous prime is 323211130009969. The next prime is 323211130010039. The reversal of 323211130009981 is 189900031112323.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 323203665913956 + 7464096025 = 17977866^2 + 86395^2 .

It is a cyclic number.

It is not a de Polignac number, because 323211130009981 - 2¹³ = 323211130001789 is a prime.

It is a super-2 number, since 2×323211130009981² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (323211130009181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 161605565004990 + 161605565004991.

It is an arithmetic number, because the mean of its divisors is an integer number (161605565004991).

Almost surely, 2^{323211130009981} is an apocalyptic number.

It is an amenable number.

323211130009981 is a deficient number, since it is larger than the sum of its proper divisors (1).

323211130009981 is an equidigital number, since it uses as much as digits as its factorization.

323211130009981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 69984, while the sum is 43.

The spelling of 323211130009981 in words is "three hundred twenty-three trillion, two hundred eleven billion, one hundred thirty million, nine thousand, nine hundred eighty-one".