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2121143333143 = 191273947222713
BaseRepresentation
bin11110110111011101111…
…111101011000100010111
321111210001010101210200111
4132313131333223010113
5234223100143130033
64302234555023451
7306150623563162
oct36673577530427
97453033353614
102121143333143
1174863212802a
122a311273ab87
1312503b592113
14749419b4ad9
153a2985287cd
hex1edddfeb117

2121143333143 has 16 divisors (see below), whose sum is σ = 2250943672320. Its totient is φ = 1993167279936.

The previous prime is 2121143333093. The next prime is 2121143333149. The reversal of 2121143333143 is 3413333411212.

It is a cyclic number.

It is not a de Polignac number, because 2121143333143 - 217 = 2121143202071 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2121143333149) 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, 9412755 + ... + 9635467.

It is an arithmetic number, because the mean of its divisors is an integer number (140683979520).

Almost surely, 22121143333143 is an apocalyptic number.

2121143333143 is a deficient number, since it is larger than the sum of its proper divisors (129800339177).

2121143333143 is a wasteful number, since it uses less digits than its factorization.

2121143333143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226806.

The product of its digits is 15552, while the sum is 31.

Adding to 2121143333143 its reverse (3413333411212), we get a palindrome (5534476744355).

The spelling of 2121143333143 in words is "two trillion, one hundred twenty-one billion, one hundred forty-three million, three hundred thirty-three thousand, one hundred forty-three".

Divisors: 1 19 127 2413 3947 74993 222713 501269 4231547 9524111 28284551 537406469 879048211 16701916009 111639122797 2121143333143