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111000011111001 = 32109113149858421
BaseRepresentation
bin11001001111010000110100…
…001110110111101001011001
3112120000111102121212201000200
4121033100310032313221121
5104022111010321023001
61032024411240252413
732244325515643305
oct3117206416675131
9476014377781020
10111000011111001
1132405927564a31
1210548667171109
1349c234395a44c
141d5a601a3ad05
15cc7571e21086
hex64f4343b7a59

111000011111001 has 12 divisors (see below), whose sum is σ = 161804297543460. Its totient is φ = 73321108256160.

The previous prime is 111000011110951. The next prime is 111000011111009. The reversal of 111000011111001 is 100111110000111.

It can be written as a sum of positive squares in 2 ways, for example, as 73502158755600 + 37497852355401 = 8573340^2 + 6123549^2 .

It is not a de Polignac number, because 111000011111001 - 214 = 111000011094617 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (111000011111009) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 56574928230 + ... + 56574930191.

It is an arithmetic number, because the mean of its divisors is an integer number (13483691461955).

Almost surely, 2111000011111001 is an apocalyptic number.

It is an amenable number.

111000011111001 is a deficient number, since it is larger than the sum of its proper divisors (50804286432459).

111000011111001 is a wasteful number, since it uses less digits than its factorization.

111000011111001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113149858536 (or 113149858533 counting only the distinct ones).

The product of its (nonzero) digits is 1, while the sum is 9.

Adding to 111000011111001 its reverse (100111110000111), we get a palindrome (211111121111112).

The spelling of 111000011111001 in words is "one hundred eleven trillion, eleven million, one hundred eleven thousand, one".

Divisors: 1 3 9 109 327 981 113149858421 339449575263 1018348725789 12333334567889 37000003703667 111000011111001