14942128321 has 4 divisors (see below), whose sum is σ = 15087197632. Its totient is φ = 14797059012.

The previous prime is 14942128301. The next prime is 14942128361. The reversal of 14942128321 is 12382124941.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 14942128321 - 2¹⁹ = 14941604033 is a prime.

It is a super-2 number, since 2×14942128321² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14942128301) 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, 72534501 + ... + 72534706.

It is an arithmetic number, because the mean of its divisors is an integer number (3771799408).

Almost surely, 2^14942128321 is an apocalyptic number.

It is an amenable number.

14942128321 is a deficient number, since it is larger than the sum of its proper divisors (145069311).

14942128321 is a wasteful number, since it uses less digits than its factorization.

14942128321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145069310.

The product of its digits is 27648, while the sum is 37.

The spelling of 14942128321 in words is "fourteen billion, nine hundred forty-two million, one hundred twenty-eight thousand, three hundred twenty-one".