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11231101211 = 119787104323
BaseRepresentation
bin10100111010110110…
…10000000100011011
31001222201022001111112
422131123100010123
5141000130214321
65054241250535
7545213533211
oct123533200433
931881261445
1011231101211
114843733630
122215333a4b
13109ca80c25
1478786acb1
1545aedda5b
hex29d6d011b

11231101211 has 8 divisors (see below), whose sum is σ = 12253479744. Its totient is φ = 10208950920.

The previous prime is 11231101169. The next prime is 11231101213. The reversal of 11231101211 is 11210113211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11231101211 - 214 = 11231084827 is a prime.

It is a super-2 number, since 2×112311012112 (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11231101213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55496 + ... + 159818.

It is an arithmetic number, because the mean of its divisors is an integer number (1531684968).

Almost surely, 211231101211 is an apocalyptic number.

11231101211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11231101211 is a deficient number, since it is larger than the sum of its proper divisors (1022378533).

11231101211 is a wasteful number, since it uses less digits than its factorization.

11231101211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114121.

The product of its (nonzero) digits is 12, while the sum is 14.

Adding to 11231101211 its reverse (11210113211), we get a palindrome (22441214422).

The spelling of 11231101211 in words is "eleven billion, two hundred thirty-one million, one hundred one thousand, two hundred eleven".

Divisors: 1 11 9787 104323 107657 1147553 1021009201 11231101211