14340232021 has 2 divisors, whose sum is σ = 14340232022. Its totient is φ = 14340232020.

The previous prime is 14340232013. The next prime is 14340232033. The reversal of 14340232021 is 12023204341.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13903003921 + 437228100 = 117911^2 + 20910^2 .

It is an emirp because it is prime and its reverse (12023204341) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 14340232021 - 2³ = 14340232013 is a prime.

It is a super-2 number, since 2×14340232021² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 14340231983 and 14340232001.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14340232091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7170116010 + 7170116011.

It is an arithmetic number, because the mean of its divisors is an integer number (7170116011).

Almost surely, 2^14340232021 is an apocalyptic number.

It is an amenable number.

14340232021 is a deficient number, since it is larger than the sum of its proper divisors (1).

14340232021 is an equidigital number, since it uses as much as digits as its factorization.

14340232021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 14340232021 its reverse (12023204341), we get a palindrome (26363436362).

The spelling of 14340232021 in words is "fourteen billion, three hundred forty million, two hundred thirty-two thousand, twenty-one".