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1021130200000 = 265510150551
BaseRepresentation
bin11101101110000000001…
…10100101001111000000
310121121201022121210200001
432313000012211033000
5113212233312400000
62101033432005344
7133526362326451
oct16670006451700
93547638553601
101021130200000
113640714169a9
12145a9a530854
13753a4b69171
14375cc88d128
151b86683146a
hexedc01a53c0

1021130200000 has 168 divisors, whose sum is σ = 2557846474848. Its totient is φ = 404400000000.

The previous prime is 1021130199997. The next prime is 1021130200007. The reversal of 1021130200000 is 20311201.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a self number, because there is not a number n which added to its sum of digits gives 1021130200000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021130200007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20174725 + ... + 20225275.

It is an arithmetic number, because the mean of its divisors is an integer number (15225276636).

Almost surely, 21021130200000 is an apocalyptic number.

1021130200000 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 1021130200000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1278923237424).

1021130200000 is an abundant number, since it is smaller than the sum of its proper divisors (1536716274848).

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

1021130200000 is an frugal number, since it uses more digits than its factorization.

1021130200000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50689 (or 50659 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 10.

Adding to 1021130200000 its reverse (20311201), we get a palindrome (1021150511201).

The spelling of 1021130200000 in words is "one trillion, twenty-one billion, one hundred thirty million, two hundred thousand".