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12042131241 = 373659156719
BaseRepresentation
bin10110011011100010…
…00101011100101001
31011002020101122112210
423031301011130221
5144130241144431
65310532355333
7604262266230
oct131561053451
934066348483
1012042131241
11511a518488
122400a75b49
13119bac645a
14823467b17
154a72e3d46
hex2cdc45729

12042131241 has 16 divisors (see below), whose sum is σ = 18355046400. Its totient is φ = 6879293328.

The previous prime is 12042131159. The next prime is 12042131249. The reversal of 12042131241 is 14213124021.

12042131241 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12042131241 - 227 = 11907913513 is a prime.

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

It is not an unprimeable number, because it can be changed into a prime (12042131249) 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 15 ways as a sum of consecutive naturals, for example, 1521 + ... + 155198.

It is an arithmetic number, because the mean of its divisors is an integer number (1147190400).

Almost surely, 212042131241 is an apocalyptic number.

It is an amenable number.

12042131241 is a deficient number, since it is larger than the sum of its proper divisors (6312915159).

12042131241 is a wasteful number, since it uses less digits than its factorization.

12042131241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160388.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 12042131241 its reverse (14213124021), we get a palindrome (26255255262).

The spelling of 12042131241 in words is "twelve billion, forty-two million, one hundred thirty-one thousand, two hundred forty-one".

Divisors: 1 3 7 21 3659 10977 25613 76839 156719 470157 1097033 3291099 573434821 1720304463 4014043747 12042131241