1020111311289 has 16 divisors (see below), whose sum is σ = 1563991872512. Its totient is φ = 579344546448.

The previous prime is 1020111311287. The next prime is 1020111311321. The reversal of 1020111311289 is 9821131110201.

It is not a de Polignac number, because 1020111311289 - 2¹ = 1020111311287 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1020111311287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 149004949 + ... + 149011794.

It is an arithmetic number, because the mean of its divisors is an integer number (97749492032).

Almost surely, 2^{1020111311289} is an apocalyptic number.

It is an amenable number.

1020111311289 is a deficient number, since it is larger than the sum of its proper divisors (543880561223).

1020111311289 is a wasteful number, since it uses less digits than its factorization.

1020111311289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 298016916.

The product of its (nonzero) digits is 864, while the sum is 30.

The spelling of 1020111311289 in words is "one trillion, twenty billion, one hundred eleven million, three hundred eleven thousand, two hundred eighty-nine".