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13123225123 = 175399142981
BaseRepresentation
bin11000011100011010…
…01000011000100011
31020212120122220112221
430032031020120203
5203334021200443
610010112131511
7643130400361
oct141615103043
936776586487
1013123225123
11562479a2a8
122662b36b97
131311a87888
148c6c84631
1551c192eed
hex30e348623

13123225123 has 8 divisors (see below), whose sum is σ = 13897850400. Its totient is φ = 12348896640.

The previous prime is 13123225081. The next prime is 13123225139. The reversal of 13123225123 is 32152232131.

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

It is a cyclic number.

It is not a de Polignac number, because 13123225123 - 217 = 13123094051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13123225523) 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, 20293 + ... + 163273.

It is an arithmetic number, because the mean of its divisors is an integer number (1737231300).

Almost surely, 213123225123 is an apocalyptic number.

13123225123 is a deficient number, since it is larger than the sum of its proper divisors (774625277).

13123225123 is a wasteful number, since it uses less digits than its factorization.

13123225123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148397.

The product of its digits is 2160, while the sum is 25.

Adding to 13123225123 its reverse (32152232131), we get a palindrome (45275457254).

The spelling of 13123225123 in words is "thirteen billion, one hundred twenty-three million, two hundred twenty-five thousand, one hundred twenty-three".

Divisors: 1 17 5399 91783 142981 2430677 771954419 13123225123