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231210301112113 = 192640471748233
BaseRepresentation
bin110100100100100011010111…
…110111011011111100110001
31010022122111012102101122022211
4310210203113313123330301
5220301122144041041423
62135424313533532121
766462251541512641
oct6444432767337461
91108574172348284
10231210301112113
1167741813379494
1221b22132044041
139c020651a032b
1441148d1640521
151bae49d09010d
hexd248d7ddbf31

231210301112113 has 6 divisors (see below), whose sum is σ = 244019736077154. Its totient is φ = 219041337895344.

The previous prime is 231210301112081. The next prime is 231210301112117. The reversal of 231210301112113 is 311211103012132.

It can be written as a sum of positive squares in only one way, i.e., 172195072225344 + 59015228886769 = 13122312^2 + 7682137^2 .

It is not a de Polignac number, because 231210301112113 - 25 = 231210301112081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231210301112117) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 320235873756 + ... + 320235874477.

It is an arithmetic number, because the mean of its divisors is an integer number (40669956012859).

Almost surely, 2231210301112113 is an apocalyptic number.

It is an amenable number.

231210301112113 is a deficient number, since it is larger than the sum of its proper divisors (12809434965041).

231210301112113 is an equidigital number, since it uses as much as digits as its factorization.

231210301112113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 640471748271 (or 640471748252 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 22.

Adding to 231210301112113 its reverse (311211103012132), we get a palindrome (542421404124245).

The spelling of 231210301112113 in words is "two hundred thirty-one trillion, two hundred ten billion, three hundred one million, one hundred twelve thousand, one hundred thirteen".

Divisors: 1 19 361 640471748233 12168963216427 231210301112113