1012110020309 has 2 divisors, whose sum is σ = 1012110020310. Its totient is φ = 1012110020308.

The previous prime is 1012110020267. The next prime is 1012110020329. The reversal of 1012110020309 is 9030200112101.

It is an a-pointer prime, because the next prime (1012110020329) can be obtained adding 1012110020309 to its sum of digits (20).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 525320544100 + 486789476209 = 724790^2 + 697703^2 .

It is a cyclic number.

It is not a de Polignac number, because 1012110020309 - 2²⁴ = 1012093243093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1012110020329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 506055010154 + 506055010155.

It is an arithmetic number, because the mean of its divisors is an integer number (506055010155).

Almost surely, 2^{1012110020309} is an apocalyptic number.

It is an amenable number.

1012110020309 is a deficient number, since it is larger than the sum of its proper divisors (1).

1012110020309 is an equidigital number, since it uses as much as digits as its factorization.

1012110020309 is an evil number, because the sum of its binary digits is even.

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

The spelling of 1012110020309 in words is "one trillion, twelve billion, one hundred ten million, twenty thousand, three hundred nine".