1012322111020 has 96 divisors (see below), whose sum is σ = 2348352518400. Its totient is φ = 363484719360.

The previous prime is 1012322111011. The next prime is 1012322111051. The reversal of 1012322111020 is 201112232101.

It is a junction number, because it is equal to n+sod(n) for n = 1012322110985 and 1012322111003.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 36012931 + ... + 36041029.

It is an arithmetic number, because the mean of its divisors is an integer number (24462005400).

Almost surely, 2^{1012322111020} is an apocalyptic number.

1012322111020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1012322111020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1174176259200).

1012322111020 is an abundant number, since it is smaller than the sum of its proper divisors (1336030407380).

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

1012322111020 is a wasteful number, since it uses less digits than its factorization.

1012322111020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30175 (or 30173 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 1012322111020 its reverse (201112232101), we get a palindrome (1213434343121).

The spelling of 1012322111020 in words is "one trillion, twelve billion, three hundred twenty-two million, one hundred eleven thousand, twenty".