1401031321 has 4 divisors (see below), whose sum is σ = 1401858612. Its totient is φ = 1400204032.

The previous prime is 1401031301. The next prime is 1401031327. The reversal of 1401031321 is 1231301041.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1287374400 + 113656921 = 35880^2 + 10661^2 .

It is a cyclic number.

It is not a de Polignac number, because 1401031321 - 2⁷ = 1401031193 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1401031295 and 1401031304.

It is not an unprimeable number, because it can be changed into a prime (1401031327) 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, 411100 + ... + 414493.

It is an arithmetic number, because the mean of its divisors is an integer number (350464653).

Almost surely, 2^1401031321 is an apocalyptic number.

It is an amenable number.

1401031321 is a deficient number, since it is larger than the sum of its proper divisors (827291).

1401031321 is an equidigital number, since it uses as much as digits as its factorization.

1401031321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 827290.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 1401031321 is about 37430.3529371552. The cubic root of 1401031321 is about 1118.9635716560.

Adding to 1401031321 its reverse (1231301041), we get a palindrome (2632332362).

The spelling of 1401031321 in words is "one billion, four hundred one million, thirty-one thousand, three hundred twenty-one".