1020111311322 has 48 divisors (see below), whose sum is σ = 2225290459392. Its totient is φ = 337725154080.

The previous prime is 1020111311321. The next prime is 1020111311333. The reversal of 1020111311322 is 2231131110201.

1020111311322 is a `hidden beast` number, since 1 + 0 + 20 + 1 + 11 + 311 + 322 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1020111311295 and 1020111311304.

It is not an unprimeable number, because it can be changed into a prime (1020111311321) 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 23 ways as a sum of consecutive naturals, for example, 3562548 + ... + 3838224.

It is an arithmetic number, because the mean of its divisors is an integer number (46360217904).

Almost surely, 2^{1020111311322} is an apocalyptic number.

1020111311322 is an abundant number, since it is smaller than the sum of its proper divisors (1205179148070).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1020111311322 is a wasteful number, since it uses less digits than its factorization.

1020111311322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277083 (or 277080 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 1020111311322 its reverse (2231131110201), we get a palindrome (3251242421523).

The spelling of 1020111311322 in words is "one trillion, twenty billion, one hundred eleven million, three hundred eleven thousand, three hundred twenty-two".