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14130042121 = 131086926317
BaseRepresentation
bin11010010100011011…
…10101010100001001
31100110202011111211101
431022031311110021
5212414242321441
610254035501401
71010104243036
oct151215652411
940422144741
1014130042121
115aa1049868
1228a4157861
131442540890
1498088838d
1557a76e231
hex34a375509

14130042121 has 4 divisors (see below), whose sum is σ = 15216968452. Its totient is φ = 13043115792.

The previous prime is 14130042097. The next prime is 14130042131. The reversal of 14130042121 is 12124003141.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12124003141 = 83146072327.

It can be written as a sum of positive squares in 2 ways, for example, as 3120786496 + 11009255625 = 55864^2 + 104925^2 .

It is a cyclic number.

It is not a de Polignac number, because 14130042121 - 27 = 14130041993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14130042131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 543463146 + ... + 543463171.

It is an arithmetic number, because the mean of its divisors is an integer number (3804242113).

Almost surely, 214130042121 is an apocalyptic number.

It is an amenable number.

14130042121 is a deficient number, since it is larger than the sum of its proper divisors (1086926331).

14130042121 is a wasteful number, since it uses less digits than its factorization.

14130042121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1086926330.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 14130042121 its reverse (12124003141), we get a palindrome (26254045262).

The spelling of 14130042121 in words is "fourteen billion, one hundred thirty million, forty-two thousand, one hundred twenty-one".

Divisors: 1 13 1086926317 14130042121