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13243401123 = 312734759583
BaseRepresentation
bin11000101010101111…
…00100001110100011
31021011221210111000220
430111113210032203
5204110302313443
610030044014123
7646120023621
oct142527441643
937157714026
1013243401123
115686611307
122697231343
131330943934
148d8c08511
155279d0a83
hex3155e43a3

13243401123 has 8 divisors (see below), whose sum is σ = 17796907008. Its totient is φ = 8759414664.

The previous prime is 13243401079. The next prime is 13243401133. The reversal of 13243401123 is 32110434231.

It is a happy number.

13243401123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a de Polignac number, because none of the positive numbers 2k-13243401123 is a prime.

It is a super-2 number, since 2×132434011232 (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13243401093 and 13243401102.

It is not an unprimeable number, because it can be changed into a prime (13243401133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17379411 + ... + 17380172.

It is an arithmetic number, because the mean of its divisors is an integer number (2224613376).

Almost surely, 213243401123 is an apocalyptic number.

13243401123 is a deficient number, since it is larger than the sum of its proper divisors (4553505885).

13243401123 is a wasteful number, since it uses less digits than its factorization.

13243401123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34759713.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 13243401123 its reverse (32110434231), we get a palindrome (45353835354).

The spelling of 13243401123 in words is "thirteen billion, two hundred forty-three million, four hundred one thousand, one hundred twenty-three".

Divisors: 1 3 127 381 34759583 104278749 4414467041 13243401123