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1311200242041 = 35217583110629
BaseRepresentation
bin10011000101001001100…
…111111110100101111001
311122100102210120200220110
4103011021213332211321
5132440314230221131
62442205043414533
7163505523110304
oct23051147764571
94570383520813
101311200242041
11466093398878
12192152384449
13968516622b1
1447668ca1b3b
152419236a646
hex131499fe979

1311200242041 has 16 divisors (see below), whose sum is σ = 1751869416960. Its totient is φ = 872332755840.

The previous prime is 1311200242039. The next prime is 1311200242057. The reversal of 1311200242041 is 1402420021131.

It is not a de Polignac number, because 1311200242041 - 21 = 1311200242039 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1311200241999 and 1311200242017.

It is not an unprimeable number, because it can be changed into a prime (1311200240041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11796915 + ... + 11907543.

It is an arithmetic number, because the mean of its divisors is an integer number (109491838560).

Almost surely, 21311200242041 is an apocalyptic number.

It is an amenable number.

1311200242041 is a deficient number, since it is larger than the sum of its proper divisors (440669174919).

1311200242041 is a wasteful number, since it uses less digits than its factorization.

1311200242041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118736.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 1311200242041 its reverse (1402420021131), we get a palindrome (2713620263172).

The spelling of 1311200242041 in words is "one trillion, three hundred eleven billion, two hundred million, two hundred forty-two thousand, forty-one".

Divisors: 1 3 521 1563 7583 22749 110629 331887 3950743 11852229 57637709 172913127 838899707 2516699121 437066747347 1311200242041