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102102000121021 = 684121871682411
BaseRepresentation
bin10111001101110001111001…
…011100101011010010111101
3111101111212002221101101201211
4113031301321130223102331
5101340314344012333041
61001053002240204421
730335424513313405
oct2715617134532275
9441455087341654
10102102000121021
112a59524030263a
12b550075309711
1344c823c6a71c4
141b2da9820d805
15bc0d923c0481
hex5cdc7972b4bd

102102000121021 has 8 divisors (see below), whose sum is σ = 102121743836288. Its totient is φ = 102082257828000.

The previous prime is 102102000121003. The next prime is 102102000121049. The reversal of 102102000121021 is 120121000201201.

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 102102000121021 - 233 = 102093410186429 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102102000120992 and 102102000121010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102102000121321) 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, 149278306 + ... + 149960716.

It is an arithmetic number, because the mean of its divisors is an integer number (12765217979536).

Almost surely, 2102102000121021 is an apocalyptic number.

It is an amenable number.

102102000121021 is a deficient number, since it is larger than the sum of its proper divisors (19743715267).

102102000121021 is an equidigital number, since it uses as much as digits as its factorization.

102102000121021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 711123.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 102102000121021 its reverse (120121000201201), we get a palindrome (222223000322222).

The spelling of 102102000121021 in words is "one hundred two trillion, one hundred two billion, one hundred twenty-one thousand, twenty-one".

Divisors: 1 6841 21871 682411 149619511 4668373651 14925010981 102102000121021