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12302310211 = 77171594183
BaseRepresentation
bin10110111010100011…
…00101101101000011
31011202100222002222221
423131101211231003
5200143342411321
65352425111511
7613601624422
oct133521455503
934670862887
1012302310211
115243373824
122474028597
131210990cc9
14849c332b9
154c0088e41
hex2dd465b43

12302310211 has 4 divisors (see below), whose sum is σ = 12303912112. Its totient is φ = 12300708312.

The previous prime is 12302310169. The next prime is 12302310217. The reversal of 12302310211 is 11201320321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11201320321 = 23487013927.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12302310211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12302310217) 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, 789375 + ... + 804808.

It is an arithmetic number, because the mean of its divisors is an integer number (3075978028).

Almost surely, 212302310211 is an apocalyptic number.

12302310211 is a deficient number, since it is larger than the sum of its proper divisors (1601901).

12302310211 is an equidigital number, since it uses as much as digits as its factorization.

12302310211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1601900.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 12302310211 its reverse (11201320321), we get a palindrome (23503630532).

The spelling of 12302310211 in words is "twelve billion, three hundred two million, three hundred ten thousand, two hundred eleven".

Divisors: 1 7717 1594183 12302310211