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231113110431211 = 894678236756439
BaseRepresentation
bin110100100011001000110110…
…110110011010010111101011
31010022022012100000222111101121
4310203020312312122113223
5220243024122232244321
62135311521444200111
766452241216405061
oct6443106666322753
91108265300874347
10231113110431211
1167704579806408
1221b07329099037
139bc5b467017a8
14410dd1174c031
151babbb07d1441
hexd23236d9a5eb

231113110431211 has 16 divisors (see below), whose sum is σ = 234494952307200. Its totient is φ = 227749903812288.

The previous prime is 231113110431199. The next prime is 231113110431241. The reversal of 231113110431211 is 112134011311132.

It is a cyclic number.

It is not a de Polignac number, because 231113110431211 - 225 = 231113076876779 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231113110431241) 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, 30828130 + ... + 37584568.

It is an arithmetic number, because the mean of its divisors is an integer number (14655934519200).

Almost surely, 2231113110431211 is an apocalyptic number.

231113110431211 is a deficient number, since it is larger than the sum of its proper divisors (3381841875989).

231113110431211 is an equidigital number, since it uses as much as digits as its factorization.

231113110431211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6757818.

The product of its (nonzero) digits is 432, while the sum is 25.

Adding to 231113110431211 its reverse (112134011311132), we get a palindrome (343247121742343).

The spelling of 231113110431211 in words is "two hundred thirty-one trillion, one hundred thirteen billion, one hundred ten million, four hundred thirty-one thousand, two hundred eleven".

Divisors: 1 89 467 823 41563 73247 384341 6756439 34206349 601323071 3155257013 5560549297 280817874157 494888887433 2596776521699 231113110431211