10209944011247 has 2 divisors, whose sum is σ = 10209944011248. Its totient is φ = 10209944011246.

The previous prime is 10209944011153. The next prime is 10209944011249. The reversal of 10209944011247 is 74211044990201.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 10209944011247 - 2²⁸ = 10209675575791 is a prime.

Together with 10209944011249, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 10209944011198 and 10209944011207.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10209944011249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5104972005623 + 5104972005624.

It is an arithmetic number, because the mean of its divisors is an integer number (5104972005624).

Almost surely, 2^{10209944011247} is an apocalyptic number.

10209944011247 is a deficient number, since it is larger than the sum of its proper divisors (1).

10209944011247 is an equidigital number, since it uses as much as digits as its factorization.

10209944011247 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 145152, while the sum is 44.

The spelling of 10209944011247 in words is "ten trillion, two hundred nine billion, nine hundred forty-four million, eleven thousand, two hundred forty-seven".