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200323212131 = 7231131878349
BaseRepresentation
bin1011101010010000110…
…0011010001101100011
3201011001212110120012002
42322210030122031203
511240230220242011
6232005513354215
720321124131300
oct2724414321543
9634055416162
10200323212131
1177a5825a269
12329a7a0896b
1315b76286463
1499a4db80a7
155326a1ac3b
hex2ea431a363

200323212131 has 12 divisors (see below), whose sum is σ = 240546110400. Its totient is φ = 166166718480.

The previous prime is 200323212097. The next prime is 200323212151. The reversal of 200323212131 is 131212323002.

It is a de Polignac number, because none of the positive numbers 2k-200323212131 is a prime.

It is a super-2 number, since 2×2003232121312 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (200323212151) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 65937656 + ... + 65940693.

It is an arithmetic number, because the mean of its divisors is an integer number (20045509200).

Almost surely, 2200323212131 is an apocalyptic number.

200323212131 is a deficient number, since it is larger than the sum of its proper divisors (40222898269).

200323212131 is a wasteful number, since it uses less digits than its factorization.

200323212131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131878394 (or 131878387 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 200323212131 its reverse (131212323002), we get a palindrome (331535535133).

The spelling of 200323212131 in words is "two hundred billion, three hundred twenty-three million, two hundred twelve thousand, one hundred thirty-one".

Divisors: 1 7 31 49 217 1519 131878349 923148443 4088228819 6462039101 28617601733 200323212131