1401443321 has 8 divisors (see below), whose sum is σ = 1431793920. Its totient is φ = 1371115008.

The previous prime is 1401443279. The next prime is 1401443327. The reversal of 1401443321 is 1233441041.

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 1401443321 - 2¹⁴ = 1401426937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1401443327) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 211385 + ... + 217913.

It is an arithmetic number, because the mean of its divisors is an integer number (178974240).

Almost surely, 2^1401443321 is an apocalyptic number.

It is an amenable number.

1401443321 is a deficient number, since it is larger than the sum of its proper divisors (30350599).

1401443321 is an equidigital number, since it uses as much as digits as its factorization.

1401443321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11143.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 1401443321 is about 37435.8560874464. The cubic root of 1401443321 is about 1119.0732451045.

Adding to 1401443321 its reverse (1233441041), we get a palindrome (2634884362).

The spelling of 1401443321 in words is "one billion, four hundred one million, four hundred forty-three thousand, three hundred twenty-one".