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13120010131 = 19690526849
BaseRepresentation
bin11000011100000001…
…10111011110010011
31020212100121120102011
430032000313132103
5203332210311011
610005515203351
7643061150254
oct141600673623
936770546364
1013120010131
1156229a3888
122661a46557
131311200407
148c6688b2b
1551bc5a621
hex30e037793

13120010131 has 4 divisors (see below), whose sum is σ = 13810537000. Its totient is φ = 12429483264.

The previous prime is 13120010107. The next prime is 13120010171. The reversal of 13120010131 is 13101002131.

13120010131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13101002131 = 71871571733.

It is a cyclic number.

It is not a de Polignac number, because 13120010131 - 29 = 13120009619 is a prime.

It is a super-2 number, since 2×131200101312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13120010171) 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 3 ways as a sum of consecutive naturals, for example, 345263406 + ... + 345263443.

It is an arithmetic number, because the mean of its divisors is an integer number (3452634250).

Almost surely, 213120010131 is an apocalyptic number.

13120010131 is a deficient number, since it is larger than the sum of its proper divisors (690526869).

13120010131 is an equidigital number, since it uses as much as digits as its factorization.

13120010131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 690526868.

The product of its (nonzero) digits is 18, while the sum is 13.

Adding to 13120010131 its reverse (13101002131), we get a palindrome (26221012262).

The spelling of 13120010131 in words is "thirteen billion, one hundred twenty million, ten thousand, one hundred thirty-one".

Divisors: 1 19 690526849 13120010131