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1012000000000 = 211591123
BaseRepresentation
bin11101011100111111110…
…01101000100000000000
310120202011000112120211111
432232133321220200000
5113040034000000000
62052523440053104
7133054206032533
oct16563771504000
93522130476744
101012000000000
11360206687570
12144170904194
137457b430362
1436da4064a1a
151b4ceed6cba
hexeb9fe68800

1012000000000 has 480 divisors, whose sum is σ = 2879296580160. Its totient is φ = 352000000000.

The previous prime is 1011999999949. The next prime is 1012000000079. The reversal of 1012000000000 is 2101.

It is a Harshad number since it is a multiple of its sum of digits (4).

It is a congruent 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 39 ways as a sum of consecutive naturals, for example, 43999999989 + ... + 44000000011.

It is an arithmetic number, because the mean of its divisors is an integer number (5998534542).

Almost surely, 21012000000000 is an apocalyptic number.

1012000000000 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 1012000000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1439648290080).

1012000000000 is an abundant number, since it is smaller than the sum of its proper divisors (1867296580160).

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

1012000000000 is an frugal number, since it uses more digits than its factorization.

1012000000000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101 (or 41 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 4.

Adding to 1012000000000 its reverse (2101), we get a palindrome (1012000002101).

The spelling of 1012000000000 in words is "one trillion, twelve billion", and thus it is an aban number and an uban number.