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12300211223231 = 31396781007201
BaseRepresentation
bin1011001011111101110110…
…1110000111101010111111
31121112212222212110101100012
42302333131232013222333
53103011313033120411
642054350010253435
72406442462215131
oct262773556075277
947485885411305
1012300211223231
113a1254362a258
121467a43a2727b
136b2b9c205049
14307494bc5051
15164e53e0418b
hexb2fddb87abf

12300211223231 has 4 divisors (see below), whose sum is σ = 12696992230464. Its totient is φ = 11903430216000.

The previous prime is 12300211223227. The next prime is 12300211223249. The reversal of 12300211223231 is 13232211200321.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12300211223231 - 22 = 12300211223227 is a prime.

It is a super-2 number, since 2×123002112232312 (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12300211223197 and 12300211223206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12300211223221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 198390503570 + ... + 198390503631.

It is an arithmetic number, because the mean of its divisors is an integer number (3174248057616).

Almost surely, 212300211223231 is an apocalyptic number.

12300211223231 is a deficient number, since it is larger than the sum of its proper divisors (396781007233).

12300211223231 is an equidigital number, since it uses as much as digits as its factorization.

12300211223231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 396781007232.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 12300211223231 its reverse (13232211200321), we get a palindrome (25532422423552).

The spelling of 12300211223231 in words is "twelve trillion, three hundred billion, two hundred eleven million, two hundred twenty-three thousand, two hundred thirty-one".

Divisors: 1 31 396781007201 12300211223231