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12312103223 = 716710532167
BaseRepresentation
bin10110111011101101…
…11100100100110111
31011210001101122111002
423131312330210313
5200203344300343
65353415033515
7614051102450
oct133566744467
934701348432
1012312103223
115248952422
12247736b89b
131212a0c5a4
1484b262127
154c0d708b8
hex2dddbc937

12312103223 has 8 divisors (see below), whose sum is σ = 14155233792. Its totient is φ = 10490037336.

The previous prime is 12312103217. The next prime is 12312103229. The reversal of 12312103223 is 32230121321.

It is an interprime number because it is at equal distance from previous prime (12312103217) and next prime (12312103229).

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12312103223 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12312103195 and 12312103204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12312103229) 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, 5264915 + ... + 5267252.

It is an arithmetic number, because the mean of its divisors is an integer number (1769404224).

Almost surely, 212312103223 is an apocalyptic number.

12312103223 is a deficient number, since it is larger than the sum of its proper divisors (1843130569).

12312103223 is a wasteful number, since it uses less digits than its factorization.

12312103223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10532341.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 12312103223 its reverse (32230121321), we get a palindrome (44542224544).

The spelling of 12312103223 in words is "twelve billion, three hundred twelve million, one hundred three thousand, two hundred twenty-three".

Divisors: 1 7 167 1169 10532167 73725169 1758871889 12312103223