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231312100303311 = 3193399502763909
BaseRepresentation
bin110100100110000010001011…
…100100100010000111001111
31010100000012221222112100220120
4310212002023210202013033
5220304304140134201221
62135543151211520023
766502514323406556
oct6446021344420717
91110005858470816
10231312100303311
1167780a02366565
1221b39a02459013
139c0b839678941
1441197cb606d9d
151bb1e5a2235c6
hexd2608b9221cf

231312100303311 has 8 divisors (see below), whose sum is σ = 310014144794160. Its totient is φ = 153409061340672.

The previous prime is 231312100303309. The next prime is 231312100303367. The reversal of 231312100303311 is 113303001213132.

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

It is not a de Polignac number, because 231312100303311 - 21 = 231312100303309 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231312100303301) 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, 199751381376 + ... + 199751382533.

It is an arithmetic number, because the mean of its divisors is an integer number (38751768099270).

Almost surely, 2231312100303311 is an apocalyptic number.

231312100303311 is a deficient number, since it is larger than the sum of its proper divisors (78702044490849).

231312100303311 is a wasteful number, since it uses less digits than its factorization.

231312100303311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 399502764105.

The product of its (nonzero) digits is 972, while the sum is 24.

Adding to 231312100303311 its reverse (113303001213132), we get a palindrome (344615101516443).

The spelling of 231312100303311 in words is "two hundred thirty-one trillion, three hundred twelve billion, one hundred million, three hundred three thousand, three hundred eleven".

Divisors: 1 3 193 579 399502763909 1198508291727 77104033434437 231312100303311