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23123301123 = 313245608089
BaseRepresentation
bin10101100010010000…
…011001001100000011
32012200111120101221010
4111202100121030003
5334324031113443
614342300332003
71446005550036
oct254220311403
965614511833
1023123301123
11989655641a
124593b44003
1322467a0800
14119502701d
15905068733
hex562419303

23123301123 has 12 divisors (see below), whose sum is σ = 33385121880. Its totient is φ = 14229723456.

The previous prime is 23123301083. The next prime is 23123301133. The reversal of 23123301123 is 32110332132.

It is not a de Polignac number, because 23123301123 - 28 = 23123300867 is a prime.

It is a super-2 number, since 2×231233011232 (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 23123301123.

It is not an unprimeable number, because it can be changed into a prime (23123301133) 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 11 ways as a sum of consecutive naturals, for example, 22803538 + ... + 22804551.

It is an arithmetic number, because the mean of its divisors is an integer number (2782093490).

Almost surely, 223123301123 is an apocalyptic number.

23123301123 is a deficient number, since it is larger than the sum of its proper divisors (10261820757).

23123301123 is a wasteful number, since it uses less digits than its factorization.

23123301123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45608118 (or 45608105 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 23123301123 its reverse (32110332132), we get a palindrome (55233633255).

The spelling of 23123301123 in words is "twenty-three billion, one hundred twenty-three million, three hundred one thousand, one hundred twenty-three".

Divisors: 1 3 13 39 169 507 45608089 136824267 592905157 1778715471 7707767041 23123301123