331333133113321 has 4 divisors (see below), whose sum is σ = 331333226703700. Its totient is φ = 331333039522944.

The previous prime is 331333133113273. The next prime is 331333133113349. The reversal of 331333133113321 is 123311331333133.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 220182269331600 + 111150863781721 = 14838540^2 + 10542811^2 .

It is a cyclic number.

It is not a de Polignac number, because 331333133113321 - 2⁷ = 331333133113193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (331333133113121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41267136 + ... + 48637873.

It is an arithmetic number, because the mean of its divisors is an integer number (82833306675925).

Almost surely, 2^{331333133113321} is an apocalyptic number.

It is an amenable number.

331333133113321 is a deficient number, since it is larger than the sum of its proper divisors (93590379).

331333133113321 is an equidigital number, since it uses as much as digits as its factorization.

331333133113321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93590378.

The product of its digits is 39366, while the sum is 34.

Adding to 331333133113321 its reverse (123311331333133), we get a palindrome (454644464446454).

The spelling of 331333133113321 in words is "three hundred thirty-one trillion, three hundred thirty-three billion, one hundred thirty-three million, one hundred thirteen thousand, three hundred twenty-one".