1010020320012 has 144 divisors (see below), whose sum is σ = 2618181288800. Its totient is φ = 302797440000.

The previous prime is 1010020319999. The next prime is 1010020320037. The reversal of 1010020320012 is 2100230200101.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a self number, because there is not a number n which added to its sum of digits gives 1010020320012.

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 47 ways as a sum of consecutive naturals, for example, 112207512 + ... + 112216512.

Almost surely, 2^{1010020320012} is an apocalyptic number.

1010020320012 is a gapful number since it is divisible by the number (12) 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 1010020320012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1309090644400).

1010020320012 is an abundant number, since it is smaller than the sum of its proper divisors (1608160968788).

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

1010020320012 is a wasteful number, since it uses less digits than its factorization.

1010020320012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9848 (or 9835 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 1010020320012 its reverse (2100230200101), we get a palindrome (3110250520113).

The spelling of 1010020320012 in words is "one trillion, ten billion, twenty million, three hundred twenty thousand, twelve".