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200131102321 = 436362577331
BaseRepresentation
bin1011101001100010111…
…1100100011001110001
3201010120110222101001221
42322120233210121301
511234332030233241
6231534452025041
720313302205343
oct2723057443161
9633513871057
10200131102321
1177969876327
1232953602181
1315b45532607
14998768b293
155314c1e5d1
hex2e98be4671

200131102321 has 8 divisors (see below), whose sum is σ = 200236274784. Its totient is φ = 200025965760.

The previous prime is 200131102267. The next prime is 200131102343. The reversal of 200131102321 is 123201131002.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-200131102321 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 200131102295 and 200131102304.

It is not an unprimeable number, because it can be changed into a prime (200131102021) 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, 27295626 + ... + 27302956.

It is an arithmetic number, because the mean of its divisors is an integer number (25029534348).

Almost surely, 2200131102321 is an apocalyptic number.

It is an amenable number.

200131102321 is a deficient number, since it is larger than the sum of its proper divisors (105172463).

200131102321 is an equidigital number, since it uses as much as digits as its factorization.

200131102321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17951.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 200131102321 its reverse (123201131002), we get a palindrome (323332233323).

The spelling of 200131102321 in words is "two hundred billion, one hundred thirty-one million, one hundred two thousand, three hundred twenty-one".

Divisors: 1 4363 6257 7331 27299291 31985153 45870067 200131102321