1424235728321 has 4 divisors (see below), whose sum is σ = 1627697975232. Its totient is φ = 1220773481412.

The previous prime is 1424235728299. The next prime is 1424235728353. The reversal of 1424235728321 is 1238275324241.

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 1424235728321 - 2⁶ = 1424235728257 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1424235748321) 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, 101731123445 + ... + 101731123458.

It is an arithmetic number, because the mean of its divisors is an integer number (406924493808).

Almost surely, 2^{1424235728321} is an apocalyptic number.

It is an amenable number.

1424235728321 is a deficient number, since it is larger than the sum of its proper divisors (203462246911).

1424235728321 is an equidigital number, since it uses as much as digits as its factorization.

1424235728321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203462246910.

The product of its digits is 645120, while the sum is 44.

The spelling of 1424235728321 in words is "one trillion, four hundred twenty-four billion, two hundred thirty-five million, seven hundred twenty-eight thousand, three hundred twenty-one".