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123034121 = 797181199
BaseRepresentation
bin1110101010101…
…01101000001001
322120111210002022
413111111220021
5222444042441
620113014225
73022526030
oct725255011
9276453068
10123034121
11634a43a1
1235254375
131c649c72
14124a9717
15ac0484b
hex7555a09

123034121 has 8 divisors (see below), whose sum is σ = 142060800. Its totient is φ = 104370048.

The previous prime is 123034111. The next prime is 123034123. The reversal of 123034121 is 121430321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-123034121 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 123034121.

It is not an unprimeable number, because it can be changed into a prime (123034123) 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 7 ways as a sum of consecutive naturals, for example, 89921 + ... + 91278.

It is an arithmetic number, because the mean of its divisors is an integer number (17757600).

Almost surely, 2123034121 is an apocalyptic number.

It is an amenable number.

123034121 is a deficient number, since it is larger than the sum of its proper divisors (19026679).

123034121 is an equidigital number, since it uses as much as digits as its factorization.

123034121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181303.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 123034121 is about 11092.0746932213. The cubic root of 123034121 is about 497.3649655821.

Adding to 123034121 its reverse (121430321), we get a palindrome (244464442).

The spelling of 123034121 in words is "one hundred twenty-three million, thirty-four thousand, one hundred twenty-one".

Divisors: 1 7 97 679 181199 1268393 17576303 123034121