14345135121321 has 6 divisors (see below), whose sum is σ = 20720750730810. Its totient is φ = 9563423414208.

The previous prime is 14345135121319. The next prime is 14345135121341. The reversal of 14345135121321 is 12312153154341.

14345135121321 is a `hidden beast` number, since 1 + 4 + 3 + 4 + 5 + 1 + 3 + 512 + 132 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 8173194854400 + 6171940266921 = 2858880^2 + 2484339^2 .

It is not a de Polignac number, because 14345135121321 - 2¹ = 14345135121319 is a prime.

It is a super-2 number, since 2×14345135121321² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (14345135121341) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 796951951176 + ... + 796951951193.

It is an arithmetic number, because the mean of its divisors is an integer number (3453458455135).

Almost surely, 2^{14345135121321} is an apocalyptic number.

It is an amenable number.

14345135121321 is a deficient number, since it is larger than the sum of its proper divisors (6375615609489).

14345135121321 is a wasteful number, since it uses less digits than its factorization.

14345135121321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1593903902375 (or 1593903902372 counting only the distinct ones).

The product of its digits is 43200, while the sum is 36.

Adding to 14345135121321 its reverse (12312153154341), we get a palindrome (26657288275662).

The spelling of 14345135121321 in words is "fourteen trillion, three hundred forty-five billion, one hundred thirty-five million, one hundred twenty-one thousand, three hundred twenty-one".