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12041021231 = 58766131033
BaseRepresentation
bin10110011011011001…
…10110011100101111
31011002011022020220022
423031230312130233
5144130000134411
65310452512355
7604246664111
oct131554663457
934064266808
1012041021231
11511992a518
12240061b6bb
13119b7c8145
148232593b1
154a7174edb
hex2cdb3672f

12041021231 has 8 divisors (see below), whose sum is σ = 12080170704. Its totient is φ = 12001936320.

The previous prime is 12041021143. The next prime is 12041021233. The reversal of 12041021231 is 13212014021.

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 12041021231 - 210 = 12041020207 is a prime.

It is a super-2 number, since 2×120410212312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12041021233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 372491 + ... + 403523.

It is an arithmetic number, because the mean of its divisors is an integer number (1510021338).

Almost surely, 212041021231 is an apocalyptic number.

12041021231 is a deficient number, since it is larger than the sum of its proper divisors (39149473).

12041021231 is an equidigital number, since it uses as much as digits as its factorization.

12041021231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32281.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 12041021231 its reverse (13212014021), we get a palindrome (25253035252).

The spelling of 12041021231 in words is "twelve billion, forty-one million, twenty-one thousand, two hundred thirty-one".

Divisors: 1 587 661 31033 388007 18216371 20512813 12041021231