1031102042209 has 2 divisors, whose sum is σ = 1031102042210. Its totient is φ = 1031102042208.

The previous prime is 1031102042207. The next prime is 1031102042239. The reversal of 1031102042209 is 9022402011301.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 596451923809 + 434650118400 = 772303^2 + 659280^2 .

It is a cyclic number.

It is not a de Polignac number, because 1031102042209 - 2¹ = 1031102042207 is a prime.

Together with 1031102042207, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1031102042207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 515551021104 + 515551021105.

It is an arithmetic number, because the mean of its divisors is an integer number (515551021105).

Almost surely, 2^{1031102042209} is an apocalyptic number.

It is an amenable number.

1031102042209 is a deficient number, since it is larger than the sum of its proper divisors (1).

1031102042209 is an equidigital number, since it uses as much as digits as its factorization.

1031102042209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 25.

The spelling of 1031102042209 in words is "one trillion, thirty-one billion, one hundred two million, forty-two thousand, two hundred nine".