1423501321 has 8 divisors (see below), whose sum is σ = 1558440288. Its totient is φ = 1289484000.

The previous prime is 1423501309. The next prime is 1423501351. The reversal of 1423501321 is 1231053241.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1423501321 - 2²¹ = 1421404169 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1423501292 and 1423501301.

It is not an unprimeable number, because it can be changed into a prime (1423501351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 227175 + ... + 233356.

It is an arithmetic number, because the mean of its divisors is an integer number (194805036).

Almost surely, 2^1423501321 is an apocalyptic number.

1423501321 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1423501321 is a deficient number, since it is larger than the sum of its proper divisors (134938967).

1423501321 is a wasteful number, since it uses less digits than its factorization.

1423501321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 460823.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 1423501321 is about 37729.3164661116. The cubic root of 1423501321 is about 1124.9139215786.

Adding to 1423501321 its reverse (1231053241), we get a palindrome (2654554562).

The spelling of 1423501321 in words is "one billion, four hundred twenty-three million, five hundred one thousand, three hundred twenty-one".