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102101120211 = 31922339720233
BaseRepresentation
bin101111100010110110…
…0110111010011010011
3100202112121021022022210
41133011230313103103
53133100341321321
6114523221203203
710243106126256
oct1370554672323
9322477238283
10102101120211
113a334469892
1217955560503
139821c0043c
144d2811d09d
1529c8923b76
hex17c5b374d3

102101120211 has 32 divisors (see below), whose sum is σ = 144312125440. Its totient is φ = 64030881024.

The previous prime is 102101120189. The next prime is 102101120309. The reversal of 102101120211 is 112021101201.

It is not a de Polignac number, because 102101120211 - 27 = 102101120083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102101120411) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5036151 + ... + 5056383.

It is an arithmetic number, because the mean of its divisors is an integer number (4509753920).

Almost surely, 2102101120211 is an apocalyptic number.

102101120211 is a deficient number, since it is larger than the sum of its proper divisors (42211005229).

102101120211 is a wasteful number, since it uses less digits than its factorization.

102101120211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20875.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 102101120211 its reverse (112021101201), we get a palindrome (214122221412).

The spelling of 102101120211 in words is "one hundred two billion, one hundred one million, one hundred twenty thousand, two hundred eleven".

Divisors: 1 3 19 57 223 397 669 1191 4237 7543 12711 20233 22629 60699 88531 265593 384427 1153281 1682089 4511959 5046267 8032501 13535877 24097503 85727221 152617519 257181663 457852557 1791247723 5373743169 34033706737 102101120211