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13131120020111 = 103229556710053
BaseRepresentation
bin1011111100010101001110…
…1111101000101010001111
31201111022201022221200122122
42333011103233220222033
53210120013211120421
643532204145403155
72523456252363452
oct277052357505217
951438638850578
1013131120020111
114202970a18585
121580a956394bb
1374334a900232
1433579a161499
1517b8859d82ab
hexbf153be8a8f

13131120020111 has 8 divisors (see below), whose sum is σ = 13316504491680. Its totient is φ = 12946848969312.

The previous prime is 13131120020101. The next prime is 13131120020141. The reversal of 13131120020111 is 11102002113131.

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

It is a cyclic number.

It is not a de Polignac number, because 13131120020111 - 238 = 12856242113167 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13131120020111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13131120020101) 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, 278331440 + ... + 278378613.

It is an arithmetic number, because the mean of its divisors is an integer number (1664563061460).

Almost surely, 213131120020111 is an apocalyptic number.

13131120020111 is a deficient number, since it is larger than the sum of its proper divisors (185384471569).

13131120020111 is a wasteful number, since it uses less digits than its factorization.

13131120020111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 556710385.

The product of its (nonzero) digits is 36, while the sum is 17.

Adding to 13131120020111 its reverse (11102002113131), we get a palindrome (24233122133242).

The spelling of 13131120020111 in words is "thirteen trillion, one hundred thirty-one billion, one hundred twenty million, twenty thousand, one hundred eleven".

Divisors: 1 103 229 23587 556710053 57341135459 127486602137 13131120020111