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13123023030123 = 323439433231753
BaseRepresentation
bin1011111011110111000100…
…1000000100011101101011
31201110112211001000222111120
42332331301020010131223
53210001422343430443
643524344503030323
72523051513165606
oct276756110043553
951415731028446
1013123023030123
1141aa496425116
12157b3b5a3b3a3
1374265a25b6b6
1433522ca4b33d
1517b55ec30083
hexbef7120476b

13123023030123 has 16 divisors (see below), whose sum is σ = 18299709288960. Its totient is φ = 8349242324544.

The previous prime is 13123023030121. The next prime is 13123023030149. The reversal of 13123023030123 is 32103032032131.

It is not a de Polignac number, because 13123023030123 - 21 = 13123023030121 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13123023030093 and 13123023030102.

It is not an unprimeable number, because it can be changed into a prime (13123023030121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 216585586 + ... + 216646167.

It is an arithmetic number, because the mean of its divisors is an integer number (1143731830560).

Almost surely, 213123023030123 is an apocalyptic number.

13123023030123 is a deficient number, since it is larger than the sum of its proper divisors (5176686258837).

13123023030123 is a wasteful number, since it uses less digits than its factorization.

13123023030123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 433232218.

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 13123023030123 its reverse (32103032032131), we get a palindrome (45226055062254).

The spelling of 13123023030123 in words is "thirteen trillion, one hundred twenty-three billion, twenty-three million, thirty thousand, one hundred twenty-three".

Divisors: 1 3 23 69 439 1317 10097 30291 433231753 1299695259 9964330319 29892990957 190188739567 570566218701 4374341010041 13123023030123