321101003081 has 2 divisors, whose sum is σ = 321101003082. Its totient is φ = 321101003080.

The previous prime is 321101003053. The next prime is 321101003141. The reversal of 321101003081 is 180300101123.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 319130087056 + 1970916025 = 564916^2 + 44395^2 .

It is a cyclic number.

It is not a de Polignac number, because 321101003081 - 2³⁴ = 303921133897 is a prime.

It is a super-2 number, since 2×321101003081² (a number of 24 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (321101003051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160550501540 + 160550501541.

It is an arithmetic number, because the mean of its divisors is an integer number (160550501541).

Almost surely, 2^321101003081 is an apocalyptic number.

It is an amenable number.

321101003081 is a deficient number, since it is larger than the sum of its proper divisors (1).

321101003081 is an equidigital number, since it uses as much as digits as its factorization.

321101003081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 20.

The spelling of 321101003081 in words is "three hundred twenty-one billion, one hundred one million, three thousand, eighty-one".