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111331421304211 = 1378133311242521
BaseRepresentation
bin11001010100000101011101…
…110100011011010110010011
3112121012011212011121212120001
4121110011131310123112103
5104043023222323213321
61032440540543030431
732310300256053163
oct3124053564332623
9477164764555501
10111331421304211
1132523432a16299
12105a093789b417
134a1767b05b3a4
141d6c6805d05a3
15cd0ebbe13c91
hex65415dd1b593

111331421304211 has 8 divisors (see below), whose sum is σ = 111343301451648. Its totient is φ = 111319541736000.

The previous prime is 111331421304203. The next prime is 111331421304227. The reversal of 111331421304211 is 112403124133111.

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

It is a cyclic number.

It is not a de Polignac number, because 111331421304211 - 23 = 111331421304203 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 111331421304211.

It is not an unprimeable number, because it can be changed into a prime (111331421304011) 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, 458937631 + ... + 459180151.

It is an arithmetic number, because the mean of its divisors is an integer number (13917912681456).

Almost surely, 2111331421304211 is an apocalyptic number.

111331421304211 is a deficient number, since it is larger than the sum of its proper divisors (11880147437).

111331421304211 is a wasteful number, since it uses less digits than its factorization.

111331421304211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289613.

The product of its (nonzero) digits is 1728, while the sum is 28.

Adding to 111331421304211 its reverse (112403124133111), we get a palindrome (223734545437322).

The spelling of 111331421304211 in words is "one hundred eleven trillion, three hundred thirty-one billion, four hundred twenty-one million, three hundred four thousand, two hundred eleven".

Divisors: 1 13781 33311 242521 459058891 3342181901 8078617031 111331421304211