1230311311985 has 16 divisors (see below), whose sum is σ = 1693246233216. Its totient is φ = 840660968448.

The previous prime is 1230311311973. The next prime is 1230311312059. The reversal of 1230311311985 is 5891131130321.

It is a de Polignac number, because none of the positive numbers 2^k-1230311311985 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62095664 + ... + 62115473.

It is an arithmetic number, because the mean of its divisors is an integer number (105827889576).

Almost surely, 2^{1230311311985} is an apocalyptic number.

It is an amenable number.

1230311311985 is a deficient number, since it is larger than the sum of its proper divisors (462934921231).

1230311311985 is a wasteful number, since it uses less digits than its factorization.

1230311311985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124211432.

The product of its (nonzero) digits is 19440, while the sum is 38.

The spelling of 1230311311985 in words is "one trillion, two hundred thirty billion, three hundred eleven million, three hundred eleven thousand, nine hundred eighty-five".