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12303120233 = 23534918271
BaseRepresentation
bin10110111010101001…
…01011011101101001
31011202102111021010202
423131110223131221
5200144044321413
65352454321545
7613611540125
oct133524533551
934672437122
1012303120233
115243877368
1224743592b5
131210bb5901
14849da4585
154c0198e58
hex2dd52b769

12303120233 has 4 divisors (see below), whose sum is σ = 12838038528. Its totient is φ = 11768201940.

The previous prime is 12303120229. The next prime is 12303120343. The reversal of 12303120233 is 33202130321.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12303120233 - 22 = 12303120229 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12303120733) 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, 267459113 + ... + 267459158.

It is an arithmetic number, because the mean of its divisors is an integer number (3209509632).

Almost surely, 212303120233 is an apocalyptic number.

It is an amenable number.

12303120233 is a deficient number, since it is larger than the sum of its proper divisors (534918295).

12303120233 is an equidigital number, since it uses as much as digits as its factorization.

12303120233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 534918294.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 12303120233 its reverse (33202130321), we get a palindrome (45505250554).

The spelling of 12303120233 in words is "twelve billion, three hundred three million, one hundred twenty thousand, two hundred thirty-three".

Divisors: 1 23 534918271 12303120233