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12031013211223 = 201149371211789
BaseRepresentation
bin1010111100010011000001…
…0001001100110001010111
31120121011010222220110200011
42233010300101030301113
53034104003340224343
641330545434501051
72351132502654646
oct257046021146127
946534128813604
1012031013211223
113919362345486
121423835b94787
1369369a969246
142d843881335d
1515ce4a98a29d
hexaf13044cc57

12031013211223 has 8 divisors (see below), whose sum is σ = 12039443868240. Its totient is φ = 12022584991680.

The previous prime is 12031013211199. The next prime is 12031013211227. The reversal of 12031013211223 is 32211231013021.

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 12031013211223 - 221 = 12031011114071 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12031013211194 and 12031013211203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12031013211227) 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, 9322413 + ... + 10534201.

It is an arithmetic number, because the mean of its divisors is an integer number (1504930483530).

Almost surely, 212031013211223 is an apocalyptic number.

12031013211223 is a deficient number, since it is larger than the sum of its proper divisors (8430657017).

12031013211223 is a wasteful number, since it uses less digits than its factorization.

12031013211223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1218737.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 12031013211223 its reverse (32211231013021), we get a palindrome (44242244224244).

The spelling of 12031013211223 in words is "twelve trillion, thirty-one billion, thirteen million, two hundred eleven thousand, two hundred twenty-three".

Divisors: 1 2011 4937 1211789 9928307 2436907679 5982602293 12031013211223