2012312331305 has 16 divisors (see below), whose sum is σ = 2482737818880. Its totient is φ = 1564635880512.

The previous prime is 2012312331301. The next prime is 2012312331343. The reversal of 2012312331305 is 5031332132102.

It is a cyclic number.

It is not a de Polignac number, because 2012312331305 - 2² = 2012312331301 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2012312331301) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5748029 + ... + 6088058.

It is an arithmetic number, because the mean of its divisors is an integer number (155171113680).

Almost surely, 2^{2012312331305} is an apocalyptic number.

It is an amenable number.

2012312331305 is a deficient number, since it is larger than the sum of its proper divisors (470425487575).

2012312331305 is a wasteful number, since it uses less digits than its factorization.

2012312331305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11837048.

The product of its (nonzero) digits is 3240, while the sum is 26.

Adding to 2012312331305 its reverse (5031332132102), we get a palindrome (7043644463407).

The spelling of 2012312331305 in words is "two trillion, twelve billion, three hundred twelve million, three hundred thirty-one thousand, three hundred five".