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23120120123 = 107353612113
BaseRepresentation
bin10101100010000100…
…010000100100111011
32012200021120210102022
4111202010100210323
5334322222320443
614342104225055
71445636531012
oct254204204473
965607523368
1023120120123
1198947834a1
124592a6b18b
132245c28969
141194839a79
15904b3ae68
hex56211093b

23120120123 has 8 divisors (see below), whose sum is σ = 23402342448. Its totient is φ = 22839122944.

The previous prime is 23120120117. The next prime is 23120120131. The reversal of 23120120123 is 32102102132.

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-23120120123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23120120923) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 268286 + ... + 343827.

It is an arithmetic number, because the mean of its divisors is an integer number (2925292806).

Almost surely, 223120120123 is an apocalyptic number.

23120120123 is a deficient number, since it is larger than the sum of its proper divisors (282222325).

23120120123 is a wasteful number, since it uses less digits than its factorization.

23120120123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 612573.

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

Adding to 23120120123 its reverse (32102102132), we get a palindrome (55222222255).

The spelling of 23120120123 in words is "twenty-three billion, one hundred twenty million, one hundred twenty thousand, one hundred twenty-three".

Divisors: 1 107 353 37771 612113 65496091 216075889 23120120123