20312456312611 has 2 divisors, whose sum is σ = 20312456312612. Its totient is φ = 20312456312610.

The previous prime is 20312456312569. The next prime is 20312456312663. The reversal of 20312456312611 is 11621365421302.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20312456312611 - 2¹⁷ = 20312456181539 is a prime.

It is not a weakly prime, because it can be changed into another prime (20312456312671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10156228156305 + 10156228156306.

It is an arithmetic number, because the mean of its divisors is an integer number (10156228156306).

Almost surely, 2^{20312456312611} is an apocalyptic number.

20312456312611 is a deficient number, since it is larger than the sum of its proper divisors (1).

20312456312611 is an equidigital number, since it uses as much as digits as its factorization.

20312456312611 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 51840, while the sum is 37.

The spelling of 20312456312611 in words is "twenty trillion, three hundred twelve billion, four hundred fifty-six million, three hundred twelve thousand, six hundred eleven".