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102112111020101 = 71315768737103979
BaseRepresentation
bin10111001101111011010100…
…000110101100100001000101
3111101112211012120211021210112
4113031323110012230201011
5101341001100410120401
61001101353424002405
730336233205453320
oct2715732406544105
9441484176737715
10102112111020101
112a599559682786
12b552017460405
1344c9191353020
141b30376d9d7b7
15bc1284d873bb
hex5cded41ac845

102112111020101 has 32 divisors (see below), whose sum is σ = 126479987639040. Its totient is φ = 80275461267456.

The previous prime is 102112111020091. The next prime is 102112111020119. The reversal of 102112111020101 is 101020111211201.

It is not a de Polignac number, because 102112111020101 - 218 = 102112110757957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102112111020151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 981993530 + ... + 982097508.

It is an arithmetic number, because the mean of its divisors is an integer number (3952499613720).

Almost surely, 2102112111020101 is an apocalyptic number.

It is an amenable number.

102112111020101 is a deficient number, since it is larger than the sum of its proper divisors (24367876618939).

102112111020101 is a wasteful number, since it uses less digits than its factorization.

102112111020101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172893.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 102112111020101 its reverse (101020111211201), we get a palindrome (203132222231302).

The spelling of 102112111020101 in words is "one hundred two trillion, one hundred twelve billion, one hundred eleven million, twenty thousand, one hundred one".

Divisors: 1 7 13 91 157 1099 2041 14287 68737 103979 481159 727853 893581 1351727 6255067 9462089 10791709 16324703 75541963 114272921 140292217 212221139 982045519 1485547973 7147204523 50030431661 92913658799 650395611593 1122111110111 7854777770777 14587444431443 102112111020101