2012310323309 has 12 divisors (see below), whose sum is σ = 2382022774908. Its totient is φ = 1688652018240.

The previous prime is 2012310323273. The next prime is 2012310323399. The reversal of 2012310323309 is 9033230132102.

It can be written as a sum of positive squares in 2 ways, for example, as 256147332100 + 1756162991209 = 506110^2 + 1325203^2 .

It is not a de Polignac number, because 2012310323309 - 2²⁸ = 2012041887853 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2012310323399) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 639639344 + ... + 639642489.

It is an arithmetic number, because the mean of its divisors is an integer number (198501897909).

Almost surely, 2^{2012310323309} is an apocalyptic number.

It is an amenable number.

2012310323309 is a deficient number, since it is larger than the sum of its proper divisors (369712451599).

2012310323309 is a wasteful number, since it uses less digits than its factorization.

2012310323309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1279281868 (or 1279281857 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 29.

The spelling of 2012310323309 in words is "two trillion, twelve billion, three hundred ten million, three hundred twenty-three thousand, three hundred nine".