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312201322032031 = 1771258658924633
BaseRepresentation
bin100011011111100100000100…
…0111001011110101110011111
31111221102011011220221120011021
41012333020020321132232133
5311410101301420011111
63023555150220105011
7122521541541521305
oct10677101071365637
91457364156846137
10312201322032031
1190527923240783
122b02285b095167
13105285c5c93b33
1457148a5d10275
152616115ce6d71
hex11bf208e5eb9f

312201322032031 has 8 divisors (see below), whose sum is σ = 335221966325664. Its totient is φ = 289697995587840.

The previous prime is 312201322032011. The next prime is 312201322032077. The reversal of 312201322032031 is 130230223102213.

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 312201322032031 - 243 = 303405229009823 is a prime.

It is a super-2 number, since 2×3122013220320312 (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 312201322031987 and 312201322032005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312201322032011) 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, 129329461110 + ... + 129329463523.

It is an arithmetic number, because the mean of its divisors is an integer number (41902745790708).

Almost surely, 2312201322032031 is an apocalyptic number.

312201322032031 is a deficient number, since it is larger than the sum of its proper divisors (23020644293633).

312201322032031 is a wasteful number, since it uses less digits than its factorization.

312201322032031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258658924721.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 312201322032031 its reverse (130230223102213), we get a palindrome (442431545134244).

The spelling of 312201322032031 in words is "three hundred twelve trillion, two hundred one billion, three hundred twenty-two million, thirty-two thousand, thirty-one".

Divisors: 1 17 71 1207 258658924633 4397201718761 18364783648943 312201322032031