1321410109 has 2 divisors, whose sum is σ = 1321410110. Its totient is φ = 1321410108.

The previous prime is 1321410071. The next prime is 1321410163. The reversal of 1321410109 is 9010141231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1318779225 + 2630884 = 36315^2 + 1622^2 .

It is a cyclic number.

It is not a de Polignac number, because 1321410109 - 2²⁵ = 1287855677 is a prime.

It is a super-2 number, since 2×1321410109² = 3492249352334783762, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1321410109.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1321410179) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 660705054 + 660705055.

It is an arithmetic number, because the mean of its divisors is an integer number (660705055).

Almost surely, 2^1321410109 is an apocalyptic number.

It is an amenable number.

1321410109 is a deficient number, since it is larger than the sum of its proper divisors (1).

1321410109 is an equidigital number, since it uses as much as digits as its factorization.

1321410109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 22.

The square root of 1321410109 is about 36351.2050556787. The cubic root of 1321410109 is about 1097.3517863789.

The spelling of 1321410109 in words is "one billion, three hundred twenty-one million, four hundred ten thousand, one hundred nine".