101012201309 has 2 divisors, whose sum is σ = 101012201310. Its totient is φ = 101012201308.

The previous prime is 101012201291. The next prime is 101012201333. The reversal of 101012201309 is 903102210101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 100720543225 + 291658084 = 317365^2 + 17078^2 .

It is a cyclic number.

It is not a de Polignac number, because 101012201309 - 2¹⁶ = 101012135773 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101012221309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50506100654 + 50506100655.

It is an arithmetic number, because the mean of its divisors is an integer number (50506100655).

Almost surely, 2^101012201309 is an apocalyptic number.

It is an amenable number.

101012201309 is a deficient number, since it is larger than the sum of its proper divisors (1).

101012201309 is an equidigital number, since it uses as much as digits as its factorization.

101012201309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 20.

The spelling of 101012201309 in words is "one hundred one billion, twelve million, two hundred one thousand, three hundred nine".