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12341142021 = 3132131185813
BaseRepresentation
bin10110111111001011…
…01110001000000101
31011212002000222020010
423133211232020011
5200233313021041
65400333300433
7614552655615
oct133745561005
934762028203
1012341142021
11526328672a
122485034719
131218a38c00
14851060a45
154c36a9a16
hex2df96e205

12341142021 has 24 divisors (see below), whose sum is σ = 17954091936. Its totient is φ = 7536534720.

The previous prime is 12341142017. The next prime is 12341142043. The reversal of 12341142021 is 12024114321.

It is not a de Polignac number, because 12341142021 - 22 = 12341142017 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12341142001) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26490 + ... + 159323.

It is an arithmetic number, because the mean of its divisors is an integer number (748087164).

Almost surely, 212341142021 is an apocalyptic number.

It is an amenable number.

12341142021 is a deficient number, since it is larger than the sum of its proper divisors (5612949915).

12341142021 is a wasteful number, since it uses less digits than its factorization.

12341142021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185973 (or 185960 counting only the distinct ones).

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

Adding to 12341142021 its reverse (12024114321), we get a palindrome (24365256342).

The spelling of 12341142021 in words is "twelve billion, three hundred forty-one million, one hundred forty-two thousand, twenty-one".

Divisors: 1 3 13 39 131 169 393 507 1703 5109 22139 66417 185813 557439 2415569 7246707 24341503 31402397 73024509 94207191 316439539 949318617 4113714007 12341142021