10401031321 has 2 divisors, whose sum is σ = 10401031322. Its totient is φ = 10401031320.

The previous prime is 10401031301. The next prime is 10401031327. The reversal of 10401031321 is 12313010401.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9952057600 + 448973721 = 99760^2 + 21189^2 .

It is a cyclic number.

It is not a de Polignac number, because 10401031321 - 2¹⁷ = 10400900249 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10401031295 and 10401031304.

It is not a weakly prime, because it can be changed into another prime (10401031327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5200515660 + 5200515661.

It is an arithmetic number, because the mean of its divisors is an integer number (5200515661).

Almost surely, 2^10401031321 is an apocalyptic number.

It is an amenable number.

10401031321 is a deficient number, since it is larger than the sum of its proper divisors (1).

10401031321 is an equidigital number, since it uses as much as digits as its factorization.

10401031321 is an evil number, because the sum of its binary digits is even.

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

Adding to 10401031321 its reverse (12313010401), we get a palindrome (22714041722).

The spelling of 10401031321 in words is "ten billion, four hundred one million, thirty-one thousand, three hundred twenty-one".