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12023220323 = 99409120947
BaseRepresentation
bin10110011001010001…
…11100100001100011
31011000220210212122102
423030220330201203
5144110421022243
65305015201015
7603642454322
oct131450744143
934026725572
1012023220323
11510a881424
1223b667616b
131197c0496a
14820b440b9
154a580a9b8
hex2cca3c863

12023220323 has 4 divisors (see below), whose sum is σ = 12023440680. Its totient is φ = 12022999968.

The previous prime is 12023220317. The next prime is 12023220329. The reversal of 12023220323 is 32302232021.

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

It is an interprime number because it is at equal distance from previous prime (12023220317) and next prime (12023220329).

It is a cyclic number.

It is not a de Polignac number, because 12023220323 - 214 = 12023203939 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12023220295 and 12023220304.

It is not an unprimeable number, because it can be changed into a prime (12023220329) 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, 38936 + ... + 159882.

It is an arithmetic number, because the mean of its divisors is an integer number (3005860170).

Almost surely, 212023220323 is an apocalyptic number.

12023220323 is a deficient number, since it is larger than the sum of its proper divisors (220357).

12023220323 is an equidigital number, since it uses as much as digits as its factorization.

12023220323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220356.

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 12023220323 its reverse (32302232021), we get a palindrome (44325452344).

The spelling of 12023220323 in words is "twelve billion, twenty-three million, two hundred twenty thousand, three hundred twenty-three".

Divisors: 1 99409 120947 12023220323