331442344035421 has 32 divisors (see below), whose sum is σ = 353280195450720. Its totient is φ = 310442911027200.

The previous prime is 331442344035389. The next prime is 331442344035449. The reversal of 331442344035421 is 124530443244133.

It can be written as a sum of positive squares in 16 ways, for example, as 207588014647225 + 123854329388196 = 14407915^2 + 11128986^2 .

It is a cyclic number.

It is not a de Polignac number, because 331442344035421 - 2⁵ = 331442344035389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331442342035421) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5650101831 + ... + 5650160491.

It is an arithmetic number, because the mean of its divisors is an integer number (11040006107835).

Almost surely, 2^{331442344035421} is an apocalyptic number.

It is an amenable number.

331442344035421 is a deficient number, since it is larger than the sum of its proper divisors (21837851415299).

331442344035421 is a wasteful number, since it uses less digits than its factorization.

331442344035421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102577.

The product of its (nonzero) digits is 1658880, while the sum is 43.

Adding to 331442344035421 its reverse (124530443244133), we get a palindrome (455972787279554).

The spelling of 331442344035421 in words is "three hundred thirty-one trillion, four hundred forty-two billion, three hundred forty-four million, thirty-five thousand, four hundred twenty-one".