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13123141423 = 73078537159
BaseRepresentation
bin11000011100011001…
…10011111100101111
31020212120111122201221
430032030303330233
5203334011011143
610010110244211
7643126601350
oct141614637457
936776448657
1013123141423
115624742427
122662ab6667
131311a58752
148c6c61d27
1551c1782ed
hex30e333f2f

13123141423 has 16 divisors (see below), whose sum is σ = 15066472960. Its totient is φ = 11197058976.

The previous prime is 13123141417. The next prime is 13123141439. The reversal of 13123141423 is 32414132131.

It is a cyclic number.

It is not a de Polignac number, because 13123141423 - 25 = 13123141391 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13123141223) 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, 1829518 + ... + 1836676.

It is an arithmetic number, because the mean of its divisors is an integer number (941654560).

Almost surely, 213123141423 is an apocalyptic number.

13123141423 is a deficient number, since it is larger than the sum of its proper divisors (1943331537).

13123141423 is an equidigital number, since it uses as much as digits as its factorization.

13123141423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8326.

The product of its digits is 1728, while the sum is 25.

Adding to 13123141423 its reverse (32414132131), we get a palindrome (45537273554).

The spelling of 13123141423 in words is "thirteen billion, one hundred twenty-three million, one hundred forty-one thousand, four hundred twenty-three".

Divisors: 1 7 307 853 2149 5971 7159 50113 261871 1833097 2197813 6106627 15384691 42746389 1874734489 13123141423