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312133031100223 = 28120834357122393
BaseRepresentation
bin100011011111000100010001…
…0011100001111111100111111
31111221011121220121111210002121
41012332020202130033330333
5311402441421430201343
63023503533540303411
7122513603326262614
oct10676104234177477
91457147817453077
10312133031100223
1190500969845963
122b0115806a1b67
131052203194c448
1457114682a050b
15261446a77baed
hex11be22270ff3f

312133031100223 has 16 divisors (see below), whose sum is σ = 313468695943776. Its totient is φ = 310799033233920.

The previous prime is 312133031100211. The next prime is 312133031100269. The reversal of 312133031100223 is 322001130331213.

It is a cyclic number.

It is not a de Polignac number, because 312133031100223 - 225 = 312132997545791 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 (312133031100923) 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, 2550191115 + ... + 2550313507.

It is an arithmetic number, because the mean of its divisors is an integer number (19591793496486).

Almost surely, 2312133031100223 is an apocalyptic number.

312133031100223 is a deficient number, since it is larger than the sum of its proper divisors (1335664843553).

312133031100223 is a wasteful number, since it uses less digits than its factorization.

312133031100223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129114.

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 312133031100223 its reverse (322001130331213), we get a palindrome (634134161431436).

The spelling of 312133031100223 in words is "three hundred twelve trillion, one hundred thirty-three billion, thirty-one million, one hundred thousand, two hundred twenty-three".

Divisors: 1 281 2083 4357 122393 585323 1224317 9075631 34392433 254944619 533266301 2550252311 71639437939 149847830581 1110793704983 312133031100223