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102012303121 = 1723260901031
BaseRepresentation
bin101111100000001101…
…0000011011100010001
3100202022102010221011221
41133000122003130101
53132410122144441
6114510325405041
710240650161311
oct1370032033421
9322272127157
10102012303121
113a299316233
121792b869781
1398096a3a51
144d1a3dd441
1529c0c2c8d1
hex17c0683711

102012303121 has 8 divisors (see below), whose sum is σ = 112709245824. Its totient is φ = 91837162560.

The previous prime is 102012303089. The next prime is 102012303137. The reversal of 102012303121 is 121303210201.

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 102012303121 - 25 = 102012303089 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102012303095 and 102012303104.

It is not an unprimeable number, because it can be changed into a prime (102012303221) 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, 130450125 + ... + 130450906.

It is an arithmetic number, because the mean of its divisors is an integer number (14088655728).

Almost surely, 2102012303121 is an apocalyptic number.

It is an amenable number.

102012303121 is a deficient number, since it is larger than the sum of its proper divisors (10696942703).

102012303121 is a wasteful number, since it uses less digits than its factorization.

102012303121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260901071.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 102012303121 its reverse (121303210201), we get a palindrome (223315513322).

The spelling of 102012303121 in words is "one hundred two billion, twelve million, three hundred three thousand, one hundred twenty-one".

Divisors: 1 17 23 391 260901031 4435317527 6000723713 102012303121