10013431321 has 2 divisors, whose sum is σ = 10013431322. Its totient is φ = 10013431320.

The previous prime is 10013431291. The next prime is 10013431327. The reversal of 10013431321 is 12313431001.

10013431321 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6718097296 + 3295334025 = 81964^2 + 57405^2 .

It is a cyclic number.

It is not a de Polignac number, because 10013431321 - 2¹¹ = 10013429273 is a prime.

It is not a weakly prime, because it can be changed into another prime (10013431327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5006715660 + 5006715661.

It is an arithmetic number, because the mean of its divisors is an integer number (5006715661).

Almost surely, 2^10013431321 is an apocalyptic number.

It is an amenable number.

10013431321 is a deficient number, since it is larger than the sum of its proper divisors (1).

10013431321 is an equidigital number, since it uses as much as digits as its factorization.

10013431321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 10013431321 its reverse (12313431001), we get a palindrome (22326862322).

The spelling of 10013431321 in words is "ten billion, thirteen million, four hundred thirty-one thousand, three hundred twenty-one".