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102102101211 = 31124112838187
BaseRepresentation
bin101111100010111000…
…0100110110011011011
3100202112200010011000010
41133011300212303123
53133101114214321
6114523254213003
710243120353315
oct1370560466333
9322480104003
10102102101211
113a334a79930
1217955954163
139822184b06
144d282d67b5
1529c8a69676
hex17c5c26cdb

102102101211 has 16 divisors (see below), whose sum is σ = 149128391808. Its totient is φ = 61623292800.

The previous prime is 102102101203. The next prime is 102102101261. The reversal of 102102101211 is 112101201201.

It is not a de Polignac number, because 102102101211 - 23 = 102102101203 is a prime.

It is not an unprimeable number, because it can be changed into a prime (102102101261) 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, 6411141 + ... + 6427046.

It is an arithmetic number, because the mean of its divisors is an integer number (9320524488).

Almost surely, 2102102101211 is an apocalyptic number.

102102101211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

102102101211 is a deficient number, since it is larger than the sum of its proper divisors (47026290597).

102102101211 is a wasteful number, since it uses less digits than its factorization.

102102101211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12838442.

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

Adding to 102102101211 its reverse (112101201201), we get a palindrome (214203302412).

The spelling of 102102101211 in words is "one hundred two billion, one hundred two million, one hundred one thousand, two hundred eleven".

Divisors: 1 3 11 33 241 723 2651 7953 12838187 38514561 141220057 423660171 3094003067 9282009201 34034033737 102102101211