14311021 has 4 divisors (see below), whose sum is σ = 14402332. Its totient is φ = 14219712.

The previous prime is 14311019. The next prime is 14311039. The reversal of 14311021 is 12011341.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12011341 = 181 ⋅66361.

It can be written as a sum of positive squares in 2 ways, for example, as 1990921 + 12320100 = 1411^2 + 3510^2 .

It is a cyclic number.

It is not a de Polignac number, because 14311021 - 2¹ = 14311019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 14310992 and 14311010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14311051) 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, 45420 + ... + 45733.

It is an arithmetic number, because the mean of its divisors is an integer number (3600583).

Almost surely, 2^14311021 is an apocalyptic number.

It is an amenable number.

14311021 is a deficient number, since it is larger than the sum of its proper divisors (91311).

14311021 is an equidigital number, since it uses as much as digits as its factorization.

14311021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91310.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 14311021 is about 3782.9910124133. The cubic root of 14311021 is about 242.7859439168.

Adding to 14311021 its reverse (12011341), we get a palindrome (26322362).

The spelling of 14311021 in words is "fourteen million, three hundred eleven thousand, twenty-one".