331333133230181 has 2 divisors, whose sum is σ = 331333133230182. Its totient is φ = 331333133230180.

The previous prime is 331333133230171. The next prime is 331333133230249. The reversal of 331333133230181 is 181032331333133.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 312870084401956 + 18463048828225 = 17688134^2 + 4296865^2 .

It is a cyclic number.

It is not a de Polignac number, because 331333133230181 - 2²² = 331333129035877 is a prime.

It is a super-2 number, since 2×331333133230181² (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 (331333133230171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165666566615090 + 165666566615091.

It is an arithmetic number, because the mean of its divisors is an integer number (165666566615091).

Almost surely, 2^{331333133230181} is an apocalyptic number.

It is an amenable number.

331333133230181 is a deficient number, since it is larger than the sum of its proper divisors (1).

331333133230181 is an equidigital number, since it uses as much as digits as its factorization.

331333133230181 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 104976, while the sum is 38.

The spelling of 331333133230181 in words is "three hundred thirty-one trillion, three hundred thirty-three billion, one hundred thirty-three million, two hundred thirty thousand, one hundred eighty-one".