13421445109 has 2 divisors, whose sum is σ = 13421445110. Its totient is φ = 13421445108.

The previous prime is 13421445091. The next prime is 13421445127. The reversal of 13421445109 is 90154412431.

Together with previous prime (13421445091) it forms an Ormiston pair, because they use the same digits, order apart.

It is a balanced prime because it is at equal distance from previous prime (13421445091) and next prime (13421445127).

It can be written as a sum of positive squares in only one way, i.e., 6971749009 + 6449696100 = 83497^2 + 80310^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13421445109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13421445409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6710722554 + 6710722555.

It is an arithmetic number, because the mean of its divisors is an integer number (6710722555).

Almost surely, 2^13421445109 is an apocalyptic number.

It is an amenable number.

13421445109 is a deficient number, since it is larger than the sum of its proper divisors (1).

13421445109 is an equidigital number, since it uses as much as digits as its factorization.

13421445109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17280, while the sum is 34.

The spelling of 13421445109 in words is "thirteen billion, four hundred twenty-one million, four hundred forty-five thousand, one hundred nine".