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12023301423 = 373143429511
BaseRepresentation
bin10110011001010010…
…10000010100101111
31011000220221222220010
423030221100110233
5144110431121143
65305021024303
7603643242630
oct131451202457
934026858803
1012023301423
11510a927351
1223b66b5093
131197c32853
14820b65887
154a5824a33
hex2cca5052f

12023301423 has 32 divisors (see below), whose sum is σ = 19352092672. Its totient is φ = 6494191200.

The previous prime is 12023301413. The next prime is 12023301427. The reversal of 12023301423 is 32410332021.

It is not a de Polignac number, because 12023301423 - 212 = 12023297327 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12023301423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12023301427) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 186763 + ... + 242748.

It is an arithmetic number, because the mean of its divisors is an integer number (604752896).

Almost surely, 212023301423 is an apocalyptic number.

12023301423 is a deficient number, since it is larger than the sum of its proper divisors (7328791249).

12023301423 is a wasteful number, since it uses less digits than its factorization.

12023301423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 429595.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 12023301423 its reverse (32410332021), we get a palindrome (44433633444).

The spelling of 12023301423 in words is "twelve billion, twenty-three million, three hundred one thousand, four hundred twenty-three".

Divisors: 1 3 7 21 31 43 93 129 217 301 651 903 1333 3999 9331 27993 429511 1288533 3006577 9019731 13314841 18468973 39944523 55406919 93203887 129282811 279611661 387848433 572538163 1717614489 4007767141 12023301423