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20110120000001 = 233492231753439
BaseRepresentation
bin1001001001010010000001…
…00011110001101000000001
32122012111201211200010002022
410210221000203301220001
510113441011210000001
6110434243411531225
74143623343413363
oct444510043615001
978174654603068
1020110120000001
1164537215199a9
1223095865b9b15
13b2b4b7607855
144d749935ad33
1524d19c78411b
hex124a408f1a01

20110120000001 has 8 divisors (see below), whose sum is σ = 20196851351040. Its totient is φ = 20023392254752.

The previous prime is 20110119999989. The next prime is 20110120000039. The reversal of 20110120000001 is 10000002101102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20110120000001 - 210 = 20110119998977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20110120030001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10592240 + ... + 12345678.

It is an arithmetic number, because the mean of its divisors is an integer number (2524606418880).

Almost surely, 220110120000001 is an apocalyptic number.

It is an amenable number.

20110120000001 is a deficient number, since it is larger than the sum of its proper divisors (86731351039).

20110120000001 is a wasteful number, since it uses less digits than its factorization.

20110120000001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1802895.

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 20110120000001 its reverse (10000002101102), we get a palindrome (30110122101103).

The spelling of 20110120000001 in words is "twenty trillion, one hundred ten billion, one hundred twenty million, one", and thus it is an aban number.

Divisors: 1 233 49223 1753439 11468959 408551287 86309527897 20110120000001