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12303221313213 = 3210717337372147
BaseRepresentation
bin1011001100001001000100…
…1000101100111010111101
31121120011202122110210112100
42303002101020230322331
53103033444124010323
642100004415055313
72406610202443515
oct263022110547275
947504678423470
1012303221313213
113a13848761426
121468543b11539
136b325ba1008c
1430769c896845
1516507d2dc943
hexb309122cebd

12303221313213 has 24 divisors (see below), whose sum is σ = 17947759703328. Its totient is φ = 8120802170592.

The previous prime is 12303221313211. The next prime is 12303221313241. The reversal of 12303221313213 is 31231312230321.

12303221313213 is a `hidden beast` number, since 1 + 2 + 3 + 0 + 322 + 1 + 313 + 21 + 3 = 666.

It is not a de Polignac number, because 12303221313213 - 21 = 12303221313211 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12303221313211) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2017195 + ... + 5354952.

It is an arithmetic number, because the mean of its divisors is an integer number (747823320972).

Almost surely, 212303221313213 is an apocalyptic number.

It is an amenable number.

12303221313213 is a deficient number, since it is larger than the sum of its proper divisors (5644538390115).

12303221313213 is a wasteful number, since it uses less digits than its factorization.

12303221313213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7373993 (or 7373990 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

Adding to 12303221313213 its reverse (31231312230321), we get a palindrome (43534533543534).

The spelling of 12303221313213 in words is "twelve trillion, three hundred three billion, two hundred twenty-one million, three hundred thirteen thousand, two hundred thirteen".

Divisors: 1 3 9 107 321 963 1733 5199 15597 185431 556293 1668879 7372147 22116441 66349323 788819729 2366459187 7099377561 12775930751 38327792253 114983376759 1367024590357 4101073771071 12303221313213