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312132103123201 = 19501111857143093
BaseRepresentation
bin100011011111000011110101…
…1001000010011000100000001
31111221011112111221100122221021
41012332013223020103010001
5311402433021344420301
63023503301510425441
7122513541330512344
oct10676075310230401
91457145457318837
10312132103123201
1190500532a44aa9
122b011361962281
1310521c1460b80a
1457113bad4045b
1526144140758a1
hex11be1eb213101

312132103123201 has 8 divisors (see below), whose sum is σ = 312153081131304. Its totient is φ = 312111125664000.

The previous prime is 312132103123151. The next prime is 312132103123271. The reversal of 312132103123201 is 102321301231213.

It can be written as a sum of positive squares in 4 ways, for example, as 2681082034801 + 309451021088400 = 1637401^2 + 17591220^2 .

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 312132103123201 - 215 = 312132103090433 is a prime.

It is a super-2 number, since 2×3121321031232012 (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (312132103123271) 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, 2181251811 + ... + 2181394903.

It is an arithmetic number, because the mean of its divisors is an integer number (39019135141413).

Almost surely, 2312132103123201 is an apocalyptic number.

It is an amenable number.

312132103123201 is a deficient number, since it is larger than the sum of its proper divisors (20978008103).

312132103123201 is a wasteful number, since it uses less digits than its factorization.

312132103123201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274451.

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 312132103123201 its reverse (102321301231213), we get a palindrome (414453404354414).

The spelling of 312132103123201 in words is "three hundred twelve trillion, one hundred thirty-two billion, one hundred three million, one hundred twenty-three thousand, two hundred one".

Divisors: 1 19501 111857 143093 2181323357 2790456593 16005953701 312132103123201