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1213411115213 = 112411259363557
BaseRepresentation
bin10001101010000100111…
…100000100000011001101
311022000000201002100111022
4101222010330010003031
5124340031221141323
62325233335203525
7153444313205213
oct21520474040315
94260021070438
101213411115213
11428671a39490
12177200b165a5
138a568bc033b
1442a2d70ccb3
152186c2994c8
hex11a84f040cd

1213411115213 has 16 divisors (see below), whose sum is σ = 1330273264320. Its totient is φ = 1097648275200.

The previous prime is 1213411115167. The next prime is 1213411115219. The reversal of 1213411115213 is 3125111143121.

It is a cyclic number.

It is not a de Polignac number, because 1213411115213 - 28 = 1213411114957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213411115219) 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, 3155831 + ... + 3519387.

It is an arithmetic number, because the mean of its divisors is an integer number (83142079020).

Almost surely, 21213411115213 is an apocalyptic number.

It is an amenable number.

1213411115213 is a deficient number, since it is larger than the sum of its proper divisors (116862149107).

1213411115213 is a wasteful number, since it uses less digits than its factorization.

1213411115213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365068.

The product of its digits is 720, while the sum is 26.

Adding to 1213411115213 its reverse (3125111143121), we get a palindrome (4338522258334).

The spelling of 1213411115213 in words is "one trillion, two hundred thirteen billion, four hundred eleven million, one hundred fifteen thousand, two hundred thirteen".

Divisors: 1 11 241 1259 2651 13849 303419 363557 3337609 3999127 87617237 457718263 963789607 5034900893 110310101383 1213411115213