1309219020101 has 4 divisors (see below), whose sum is σ = 1310701715232. Its totient is φ = 1307736324972.

The previous prime is 1309219020073. The next prime is 1309219020121. The reversal of 1309219020101 is 1010209129031.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1309219020101 - 2⁶ = 1309219020037 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1309219020121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 741346241 + ... + 741348006.

It is an arithmetic number, because the mean of its divisors is an integer number (327675428808).

Almost surely, 2^{1309219020101} is an apocalyptic number.

It is an amenable number.

1309219020101 is a deficient number, since it is larger than the sum of its proper divisors (1482695131).

1309219020101 is an equidigital number, since it uses as much as digits as its factorization.

1309219020101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1482695130.

The product of its (nonzero) digits is 972, while the sum is 29.

The spelling of 1309219020101 in words is "one trillion, three hundred nine billion, two hundred nineteen million, twenty thousand, one hundred one".