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11112102001 = 7111379831693
BaseRepresentation
bin10100101100101010…
…10011100001110001
31001200102101021021101
422112111103201301
5140224144231001
65034350524401
7542240210560
oct122625234161
931612337241
1011112102001
114792545780
1221a1506701
1310812176b0
14775b31bd7
15450834a01
hex296553871

11112102001 has 64 divisors (see below), whose sum is σ = 15299665920. Its totient is φ = 7791863040.

The previous prime is 11112101983. The next prime is 11112102013. The reversal of 11112102001 is 10020121111.

It is not a de Polignac number, because 11112102001 - 215 = 11112069233 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11112102301) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6562711 + ... + 6564403.

It is an arithmetic number, because the mean of its divisors is an integer number (239057280).

Almost surely, 211112102001 is an apocalyptic number.

11112102001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11112102001 is a deficient number, since it is larger than the sum of its proper divisors (4187563919).

11112102001 is a wasteful number, since it uses less digits than its factorization.

11112102001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1886.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 11112102001 its reverse (10020121111), we get a palindrome (21132223112).

The spelling of 11112102001 in words is "eleven billion, one hundred twelve million, one hundred two thousand, one".

Divisors: 1 7 11 13 77 79 83 91 143 553 581 869 913 1001 1027 1079 1693 6083 6391 6557 7189 7553 11297 11851 11869 18623 22009 45899 72127 79079 83083 85241 130361 133747 140519 154063 242099 504889 596687 936229 937651 983633 1471217 1545709 1694693 1738711 1826747 6563557 10298519 10819963 11101001 12170977 12787229 19125821 20094217 77707007 122111011 133880747 140659519 144313013 854777077 1010191091 1587443143 11112102001