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12102312311211 = 36760210509011
BaseRepresentation
bin1011000000011100101000…
…0001101011100110101011
31120211222011221202000201010
42300013022001223212223
53041241013422424321
641423420413555003
72356235403216063
oct260071201534653
946758157660633
1012102312311211
11394661a87a601
121435613aa5a63
1369a321294cc5
142dba7db943a3
1515ec2015e676
hexb01ca06b9ab

12102312311211 has 8 divisors (see below), whose sum is σ = 16377258451264. Its totient is φ = 7947787189320.

The previous prime is 12102312311209. The next prime is 12102312311279. The reversal of 12102312311211 is 11211321320121.

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

It is not a de Polignac number, because 12102312311211 - 21 = 12102312311209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12102312311311) 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, 30105254305 + ... + 30105254706.

It is an arithmetic number, because the mean of its divisors is an integer number (2047157306408).

Almost surely, 212102312311211 is an apocalyptic number.

12102312311211 is a deficient number, since it is larger than the sum of its proper divisors (4274946140053).

12102312311211 is an equidigital number, since it uses as much as digits as its factorization.

12102312311211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60210509081.

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

Adding to 12102312311211 its reverse (11211321320121), we get a palindrome (23313633631332).

The spelling of 12102312311211 in words is "twelve trillion, one hundred two billion, three hundred twelve million, three hundred eleven thousand, two hundred eleven".

Divisors: 1 3 67 201 60210509011 180631527033 4034104103737 12102312311211