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12232023211 = 47260255813
BaseRepresentation
bin10110110010001010…
…11101110010101011
31011120110201011100201
423121011131302223
5200022344220321
65341434413031
7612056324152
oct133105356253
934513634321
1012232023211
1152077270a1
122454591177
1311cc251975
14840778599
154b8d03291
hex2d915dcab

12232023211 has 4 divisors (see below), whose sum is σ = 12492279072. Its totient is φ = 11971767352.

The previous prime is 12232023179. The next prime is 12232023233. The reversal of 12232023211 is 11232023221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11232023221 = 34732368943.

It is a cyclic number.

It is not a de Polignac number, because 12232023211 - 25 = 12232023179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12232023611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 130127860 + ... + 130127953.

It is an arithmetic number, because the mean of its divisors is an integer number (3123069768).

Almost surely, 212232023211 is an apocalyptic number.

12232023211 is a deficient number, since it is larger than the sum of its proper divisors (260255861).

12232023211 is an equidigital number, since it uses as much as digits as its factorization.

12232023211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260255860.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 12232023211 its reverse (11232023221), we get a palindrome (23464046432).

The spelling of 12232023211 in words is "twelve billion, two hundred thirty-two million, twenty-three thousand, two hundred eleven".

Divisors: 1 47 260255813 12232023211