331014421 has 2 divisors, whose sum is σ = 331014422. Its totient is φ = 331014420.

The previous prime is 331014419. The next prime is 331014427. The reversal of 331014421 is 124410133.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 327211921 + 3802500 = 18089^2 + 1950^2 .

It is a cyclic number.

It is not a de Polignac number, because 331014421 - 2¹ = 331014419 is a prime.

Together with 331014419, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (331014427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165507210 + 165507211.

It is an arithmetic number, because the mean of its divisors is an integer number (165507211).

Almost surely, 2^331014421 is an apocalyptic number.

It is an amenable number.

331014421 is a deficient number, since it is larger than the sum of its proper divisors (1).

331014421 is an equidigital number, since it uses as much as digits as its factorization.

331014421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 331014421 is about 18193.8017192669. The cubic root of 331014421 is about 691.7496874137.

Adding to 331014421 its reverse (124410133), we get a palindrome (455424554).

The spelling of 331014421 in words is "three hundred thirty-one million, fourteen thousand, four hundred twenty-one".