10321402309 has 2 divisors, whose sum is σ = 10321402310. Its totient is φ = 10321402308.

The previous prime is 10321402307. The next prime is 10321402367. The reversal of 10321402309 is 90320412301.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9663479809 + 657922500 = 98303^2 + 25650^2 .

It is a cyclic number.

It is not a de Polignac number, because 10321402309 - 2¹ = 10321402307 is a prime.

Together with 10321402307, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10321402307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5160701154 + 5160701155.

It is an arithmetic number, because the mean of its divisors is an integer number (5160701155).

Almost surely, 2^10321402309 is an apocalyptic number.

It is an amenable number.

10321402309 is a deficient number, since it is larger than the sum of its proper divisors (1).

10321402309 is an equidigital number, since it uses as much as digits as its factorization.

10321402309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 25.

The spelling of 10321402309 in words is "ten billion, three hundred twenty-one million, four hundred two thousand, three hundred nine".