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12023212331 = 131948676973
BaseRepresentation
bin10110011001010001…
…11010100100101011
31011000220210110200102
423030220322210223
5144110420243311
65305015100015
7603642422114
oct131450724453
934026713612
1012023212331
11510a876419
1223b667160b
131197c01130
14820b4120b
154a580843b
hex2cca3a92b

12023212331 has 8 divisors (see below), whose sum is σ = 13629552720. Its totient is φ = 10514225952.

The previous prime is 12023212309. The next prime is 12023212337. The reversal of 12023212331 is 13321232021.

12023212331 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12023212331 - 210 = 12023211307 is a prime.

It is a super-2 number, since 2×120232123312 (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12023212337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24338240 + ... + 24338733.

It is an arithmetic number, because the mean of its divisors is an integer number (1703694090).

Almost surely, 212023212331 is an apocalyptic number.

12023212331 is a deficient number, since it is larger than the sum of its proper divisors (1606340389).

12023212331 is a wasteful number, since it uses less digits than its factorization.

12023212331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48677005.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 12023212331 its reverse (13321232021), we get a palindrome (25344444352).

The spelling of 12023212331 in words is "twelve billion, twenty-three million, two hundred twelve thousand, three hundred thirty-one".

Divisors: 1 13 19 247 48676973 632800649 924862487 12023212331