1210020310249 has 2 divisors, whose sum is σ = 1210020310250. Its totient is φ = 1210020310248.

The previous prime is 1210020310193. The next prime is 1210020310267. The reversal of 1210020310249 is 9420130200121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 929218881600 + 280801428649 = 963960^2 + 529907^2 .

It is a cyclic number.

It is not a de Polignac number, because 1210020310249 - 2³⁵ = 1175660571881 is a prime.

It is not a weakly prime, because it can be changed into another prime (1210020311249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 605010155124 + 605010155125.

It is an arithmetic number, because the mean of its divisors is an integer number (605010155125).

Almost surely, 2^{1210020310249} is an apocalyptic number.

It is an amenable number.

1210020310249 is a deficient number, since it is larger than the sum of its proper divisors (1).

1210020310249 is an equidigital number, since it uses as much as digits as its factorization.

1210020310249 is an evil number, because the sum of its binary digits is even.

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

The spelling of 1210020310249 in words is "one trillion, two hundred ten billion, twenty million, three hundred ten thousand, two hundred forty-nine".