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102101031012111 = 3436646711907877
BaseRepresentation
bin10111001101110000111111…
…101011110100011100001111
3111101111202121101211120020020
4113031300333223310130033
5101340310402414341421
61001052322140553223
730335361505112115
oct2715607753643417
9441452541746206
10102101031012111
112a59489326878a
12b54ba44852813
1344c8116994791
141b2da05623ab5
15bc0d37291dc6
hex5cdc3faf470f

102101031012111 has 16 divisors (see below), whose sum is σ = 139302738943104. Its totient is φ = 66483386442144.

The previous prime is 102101031012109. The next prime is 102101031012119. The reversal of 102101031012111 is 111210130101201.

It is not a de Polignac number, because 102101031012111 - 21 = 102101031012109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102101031012119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2620305 + ... + 14528181.

It is an arithmetic number, because the mean of its divisors is an integer number (8706421183944).

Almost surely, 2102101031012111 is an apocalyptic number.

102101031012111 is a deficient number, since it is larger than the sum of its proper divisors (37201707930993).

102101031012111 is a wasteful number, since it uses less digits than its factorization.

102101031012111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11974390.

The product of its (nonzero) digits is 12, while the sum is 15.

Adding to 102101031012111 its reverse (111210130101201), we get a palindrome (213311161113312).

The spelling of 102101031012111 in words is "one hundred two trillion, one hundred one billion, thirty-one million, twelve thousand, one hundred eleven".

Divisors: 1 3 43 129 66467 199401 2858081 8574243 11907877 35723631 512038711 1536116133 791480860559 2374442581677 34033677004037 102101031012111