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231012132112011 = 3331991234753397
BaseRepresentation
bin110100100001101010110100…
…000100101100011010001011
31010021221112200200110101111110
4310201222310010230122023
5220234400321310041021
62135153301452301403
766442034663015025
oct6441526404543213
91107845620411443
10231012132112011
1167675771115648
1221aab847771863
139bb9473306363
1441090927c5015
151ba9250749476
hexd21ab412c68b

231012132112011 has 16 divisors (see below), whose sum is σ = 309258492443648. Its totient is φ = 153387868946400.

The previous prime is 231012132111989. The next prime is 231012132112063. The reversal of 231012132112011 is 110211231210132.

It is not a de Polignac number, because 231012132112011 - 214 = 231012132095627 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231012136112011) 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, 116392636 + ... + 118360761.

It is an arithmetic number, because the mean of its divisors is an integer number (19328655777728).

Almost surely, 2231012132112011 is an apocalyptic number.

231012132112011 is a deficient number, since it is larger than the sum of its proper divisors (78246360331637).

231012132112011 is a wasteful number, since it uses less digits than its factorization.

231012132112011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234754722.

The product of its (nonzero) digits is 144, while the sum is 21.

Adding to 231012132112011 its reverse (110211231210132), we get a palindrome (341223363322143).

The spelling of 231012132112011 in words is "two hundred thirty-one trillion, twelve billion, one hundred thirty-two million, one hundred twelve thousand, eleven".

Divisors: 1 3 331 991 993 2973 328021 984063 234753397 704260191 77703374407 232640616427 233110123221 697921849281 77004044037337 231012132112011