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1112001121 = 71123361981
BaseRepresentation
bin100001001000111…
…1100101001100001
32212111102111202201
41002101330221201
54234133013441
6302202013201
736361565530
oct10221745141
92774374681
101112001121
115207719a0
122704a7201
131494c333a
14a7984317
1567956c31
hex4247ca61

1112001121 has 16 divisors (see below), whose sum is σ = 1392363648. Its totient is φ = 862761600.

The previous prime is 1112001103. The next prime is 1112001131. The reversal of 1112001121 is 1211002111.

It is a cyclic number.

It is not a de Polignac number, because 1112001121 - 221 = 1109903969 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1112001098 and 1112001107.

It is not an unprimeable number, because it can be changed into a prime (1112001131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13050 + ... + 48931.

It is an arithmetic number, because the mean of its divisors is an integer number (87022728).

Almost surely, 21112001121 is an apocalyptic number.

1112001121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1112001121 is a deficient number, since it is larger than the sum of its proper divisors (280362527).

1112001121 is a wasteful number, since it uses less digits than its factorization.

1112001121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62232.

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

The square root of 1112001121 is about 33346.6808093399. The cubic root of 1112001121 is about 1036.0206416111.

Adding to 1112001121 its reverse (1211002111), we get a palindrome (2323003232).

The spelling of 1112001121 in words is "one billion, one hundred twelve million, one thousand, one hundred twenty-one".

Divisors: 1 7 11 77 233 1631 2563 17941 61981 433867 681791 4772537 14441573 101091011 158857303 1112001121