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11424214121 = 78511145511
BaseRepresentation
bin10101010001110111…
…11010110001101001
31002111011200012121112
422220323322301221
5141344044322441
65125340320105
7553050134465
oct125073726151
932434605545
1011424214121
114932742181
122269b43035
131100a96518
147a53794a5
1546ce374eb
hex2a8efac69

11424214121 has 4 divisors (see below), whose sum is σ = 11424438144. Its totient is φ = 11423990100.

The previous prime is 11424214069. The next prime is 11424214127. The reversal of 11424214121 is 12141242411.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11424214121 - 218 = 11423951977 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11424214127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5756 + ... + 151266.

It is an arithmetic number, because the mean of its divisors is an integer number (2856109536).

Almost surely, 211424214121 is an apocalyptic number.

It is an amenable number.

11424214121 is a deficient number, since it is larger than the sum of its proper divisors (224023).

11424214121 is an equidigital number, since it uses as much as digits as its factorization.

11424214121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224022.

The product of its digits is 512, while the sum is 23.

Adding to 11424214121 its reverse (12141242411), we get a palindrome (23565456532).

The spelling of 11424214121 in words is "eleven billion, four hundred twenty-four million, two hundred fourteen thousand, one hundred twenty-one".

Divisors: 1 78511 145511 11424214121