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10000122131 = 22344843597
BaseRepresentation
bin10010101000000110…
…11100000100010011
3221210220222211122202
421110003130010103
5130440012402011
64332145153415
7502545431006
oct112403340423
927726884582
1010000122131
11427189884a
121b3102b86b
13c34a30c3c
146ac19553d
153d7dd423b
hex2540dc113

10000122131 has 4 divisors (see below), whose sum is σ = 10044965952. Its totient is φ = 9955278312.

The previous prime is 10000122103. The next prime is 10000122133. The reversal of 10000122131 is 13122100001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13122100001 = 23570526087.

It is a cyclic number.

It is not a de Polignac number, because 10000122131 - 226 = 9933013267 is a prime.

It is a super-2 number, since 2×100001221312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10000122133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22421576 + ... + 22422021.

It is an arithmetic number, because the mean of its divisors is an integer number (2511241488).

Almost surely, 210000122131 is an apocalyptic number.

10000122131 is a deficient number, since it is larger than the sum of its proper divisors (44843821).

10000122131 is an equidigital number, since it uses as much as digits as its factorization.

10000122131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44843820.

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 10000122131 its reverse (13122100001), we get a palindrome (23122222132).

The spelling of 10000122131 in words is "ten billion, one hundred twenty-two thousand, one hundred thirty-one".

Divisors: 1 223 44843597 10000122131