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13231323123 = 322931923437
BaseRepresentation
bin11000101001010010…
…11111011111110011
31021011010001212010120
430110221133133303
5204044204314443
610024533101323
7645612251034
oct142451373763
937133055116
1013231323123
11567a811997
122693187843
13132b2a52a5
148d7382a8b
155268e7083
hex314a5f7f3

13231323123 has 8 divisors (see below), whose sum is σ = 17649467088. Its totient is φ = 8817030624.

The previous prime is 13231323107. The next prime is 13231323179. The reversal of 13231323123 is 32132313231.

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

It is not a de Polignac number, because 13231323123 - 24 = 13231323107 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13231323093 and 13231323102.

It is not an unprimeable number, because it can be changed into a prime (13231323823) 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, 954840 + ... + 968597.

It is an arithmetic number, because the mean of its divisors is an integer number (2206183386).

Almost surely, 213231323123 is an apocalyptic number.

13231323123 is a deficient number, since it is larger than the sum of its proper divisors (4418143965).

13231323123 is a wasteful number, since it uses less digits than its factorization.

13231323123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1925733.

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

Adding to 13231323123 its reverse (32132313231), we get a palindrome (45363636354).

The spelling of 13231323123 in words is "thirteen billion, two hundred thirty-one million, three hundred twenty-three thousand, one hundred twenty-three".

Divisors: 1 3 2293 6879 1923437 5770311 4410441041 13231323123