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13131242113 = 111193749283
BaseRepresentation
bin11000011101010111…
…01101101010000001
31020220010202012210111
430032223231222001
5203343044221423
610011000031321
7643255500463
oct141653555201
936803665714
1013131242113
115629275610
122665762541
131313633962
148c7d70133
1551cc2860d
hex30eaeda81

13131242113 has 4 divisors (see below), whose sum is σ = 14324991408. Its totient is φ = 11937492820.

The previous prime is 13131242101. The next prime is 13131242143. The reversal of 13131242113 is 31124213131.

13131242113 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 a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 13131242113 - 25 = 13131242081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13131242143) 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, 596874631 + ... + 596874652.

It is an arithmetic number, because the mean of its divisors is an integer number (3581247852).

Almost surely, 213131242113 is an apocalyptic number.

It is an amenable number.

13131242113 is a deficient number, since it is larger than the sum of its proper divisors (1193749295).

13131242113 is a wasteful number, since it uses less digits than its factorization.

13131242113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1193749294.

The product of its digits is 432, while the sum is 22.

Adding to 13131242113 its reverse (31124213131), we get a palindrome (44255455244).

The spelling of 13131242113 in words is "thirteen billion, one hundred thirty-one million, two hundred forty-two thousand, one hundred thirteen".

Divisors: 1 11 1193749283 13131242113