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11231000211 = 3231031580273
BaseRepresentation
bin10100111010110101…
…10111011010010011
31001222201002220221210
422131122313122103
5141000114001321
65054235151203
7545212632564
oct123532673223
931881086853
1011231000211
114843674762
1222152a5503
13109ca46c72
1478784216b
1545aebdb76
hex29d6b7693

11231000211 has 16 divisors (see below), whose sum is σ = 15777455616. Its totient is φ = 7092260736.

The previous prime is 11231000167. The next prime is 11231000227. The reversal of 11231000211 is 11200013211.

It is not a de Polignac number, because 11231000211 - 26 = 11231000147 is a prime.

It is a super-2 number, since 2×112310002112 (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11231001211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 783030 + ... + 797243.

It is an arithmetic number, because the mean of its divisors is an integer number (986090976).

Almost surely, 211231000211 is an apocalyptic number.

11231000211 is a deficient number, since it is larger than the sum of its proper divisors (4546455405).

11231000211 is a wasteful number, since it uses less digits than its factorization.

11231000211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1580402.

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

Adding to 11231000211 its reverse (11200013211), we get a palindrome (22431013422).

The spelling of 11231000211 in words is "eleven billion, two hundred thirty-one million, two hundred eleven", and thus it is an aban number.

Divisors: 1 3 23 69 103 309 2369 7107 1580273 4740819 36346279 109038837 162768119 488304357 3743666737 11231000211