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312321300231 = 3139748971943
BaseRepresentation
bin1001000101101111100…
…11001101011100000111
31002212011012121221011010
410202313303031130013
520104113223101411
6355251201213303
731364420151423
oct4426763153407
91085135557133
10312321300231
11110500260556
1250643931233
13235b470b3c5
141118b6b9b83
1581ce2497a6
hex48b7ccd707

312321300231 has 8 divisors (see below), whose sum is σ = 419424288640. Its totient is φ = 206716255992.

The previous prime is 312321300229. The next prime is 312321300259. The reversal of 312321300231 is 132003123213.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 312321300231 - 21 = 312321300229 is a prime.

It is a super-2 number, since 2×3123213002312 (a number of 24 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 = 312321300198 and 312321300207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312321302231) 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, 374485555 + ... + 374486388.

It is an arithmetic number, because the mean of its divisors is an integer number (52428036080).

Almost surely, 2312321300231 is an apocalyptic number.

312321300231 is a deficient number, since it is larger than the sum of its proper divisors (107102988409).

312321300231 is a wasteful number, since it uses less digits than its factorization.

312321300231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 748972085.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 312321300231 its reverse (132003123213), we get a palindrome (444324423444).

The spelling of 312321300231 in words is "three hundred twelve billion, three hundred twenty-one million, three hundred thousand, two hundred thirty-one".

Divisors: 1 3 139 417 748971943 2246915829 104107100077 312321300231