331134402343121 has 4 divisors (see below), whose sum is σ = 356606279446452. Its totient is φ = 305662525239792.

The previous prime is 331134402343097. The next prime is 331134402343123. The reversal of 331134402343121 is 121343204431133.

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 100349084118721 + 230785318224400 = 10017439^2 + 15191620^2 .

It is a cyclic number.

It is not a de Polignac number, because 331134402343121 - 2¹⁴ = 331134402326737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (331134402343123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12735938551646 + ... + 12735938551671.

It is an arithmetic number, because the mean of its divisors is an integer number (89151569861613).

Almost surely, 2^{331134402343121} is an apocalyptic number.

It is an amenable number.

331134402343121 is a deficient number, since it is larger than the sum of its proper divisors (25471877103331).

331134402343121 is a wasteful number, since it uses less digits than its factorization.

331134402343121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25471877103330.

The product of its (nonzero) digits is 62208, while the sum is 35.

Adding to 331134402343121 its reverse (121343204431133), we get a palindrome (452477606774254).

The spelling of 331134402343121 in words is "three hundred thirty-one trillion, one hundred thirty-four billion, four hundred two million, three hundred forty-three thousand, one hundred twenty-one".