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10422123121 = 99671045663
BaseRepresentation
bin10011011010011010…
…01111101001110001
3222220100001201012001
421231031033221301
5132321030414441
64442102134001
7516161404414
oct115515175161
928810051161
1010422123121
1144690203a3
12202a421301
13ca12a6677
1470c245b7b
1540ee91731
hex26d34fa71

10422123121 has 4 divisors (see below), whose sum is σ = 10423178752. Its totient is φ = 10421067492.

The previous prime is 10422123119. The next prime is 10422123161. The reversal of 10422123121 is 12132122401.

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, and also an emirpimes, since its reverse is a distinct semiprime: 12132122401 = 71733160343.

It is a cyclic number.

It is not a de Polignac number, because 10422123121 - 21 = 10422123119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10422123161) 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, 512865 + ... + 532798.

It is an arithmetic number, because the mean of its divisors is an integer number (2605794688).

Almost surely, 210422123121 is an apocalyptic number.

It is an amenable number.

10422123121 is a deficient number, since it is larger than the sum of its proper divisors (1055631).

10422123121 is an equidigital number, since it uses as much as digits as its factorization.

10422123121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1055630.

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

Adding to 10422123121 its reverse (12132122401), we get a palindrome (22554245522).

The spelling of 10422123121 in words is "ten billion, four hundred twenty-two million, one hundred twenty-three thousand, one hundred twenty-one".

Divisors: 1 9967 1045663 10422123121