321431610061069 has 2 divisors, whose sum is σ = 321431610061070. Its totient is φ = 321431610061068.

The previous prime is 321431610061019. The next prime is 321431610061073. The reversal of 321431610061069 is 960160016134123.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 312164231148900 + 9267378912169 = 17668170^2 + 3044237^2 .

It is a cyclic number.

It is not a de Polignac number, because 321431610061069 - 2⁷ = 321431610060941 is a prime.

It is a super-2 number, since 2×321431610061069² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (321431610061019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160715805030534 + 160715805030535.

It is an arithmetic number, because the mean of its divisors is an integer number (160715805030535).

Almost surely, 2^{321431610061069} is an apocalyptic number.

It is an amenable number.

321431610061069 is a deficient number, since it is larger than the sum of its proper divisors (1).

321431610061069 is an equidigital number, since it uses as much as digits as its factorization.

321431610061069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 139968, while the sum is 43.

The spelling of 321431610061069 in words is "three hundred twenty-one trillion, four hundred thirty-one billion, six hundred ten million, sixty-one thousand, sixty-nine".