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102321311212201 = 3715796497182537
BaseRepresentation
bin10111010000111110001001…
…011010000110001010101001
3111102021211012002220011020111
4113100332021122012022221
5101402413021132242301
61001341432250054321
730360320322655654
oct2720761132061251
9442254162804214
10102321311212201
112a66a251739424
12b58668011a3a1
134512b20746043
141b3a540cc889b
15bc692ad7e551
hex5d0f896862a9

102321311212201 has 16 divisors (see below), whose sum is σ = 105757769751696. Its totient is φ = 98920189495296.

The previous prime is 102321311212199. The next prime is 102321311212213. The reversal of 102321311212201 is 102212113123201.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 1185705387801 + 101135605824400 = 1088901^2 + 10056620^2 .

It is not a de Polignac number, because 102321311212201 - 21 = 102321311212199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102321311213201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 560459805 + ... + 560642341.

It is an arithmetic number, because the mean of its divisors is an integer number (6609860609481).

Almost surely, 2102321311212201 is an apocalyptic number.

It is an amenable number.

102321311212201 is a deficient number, since it is larger than the sum of its proper divisors (3436458539495).

102321311212201 is a wasteful number, since it uses less digits than its factorization.

102321311212201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279228.

The product of its (nonzero) digits is 288, while the sum is 22.

Adding to 102321311212201 its reverse (102212113123201), we get a palindrome (204533424335402).

The spelling of 102321311212201 in words is "one hundred two trillion, three hundred twenty-one billion, three hundred eleven million, two hundred twelve thousand, two hundred one".

Divisors: 1 37 157 5809 96497 182537 3570389 6753869 15150029 28658309 560551073 1060357433 17614272889 651728096893 2765440843573 102321311212201