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200200312031081 is a prime number
BaseRepresentation
bin101101100001010011000100…
…011110111000011101101001
3222020211221222222001120020112
4231201103010132320131221
5202220040214334443311
61545442430443304105
760111665235430235
oct5541230436703551
9866757888046215
10200200312031081
1158876525a2607a
121a5541b351b035
138792a6812c01b
143761a6532b5c5
151822a09aec28b
hexb614c47b8769

200200312031081 has 2 divisors, whose sum is σ = 200200312031082. Its totient is φ = 200200312031080.

The previous prime is 200200312030991. The next prime is 200200312031087. The reversal of 200200312031081 is 180130213002002.

It is a happy number.

200200312031081 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 136448471005456 + 63751841025625 = 11681116^2 + 7984475^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-200200312031081 is a prime.

It is a super-2 number, since 2×2002003120310812 (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (200200312031087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100100156015540 + 100100156015541.

It is an arithmetic number, because the mean of its divisors is an integer number (100100156015541).

Almost surely, 2200200312031081 is an apocalyptic number.

It is an amenable number.

200200312031081 is a deficient number, since it is larger than the sum of its proper divisors (1).

200200312031081 is an equidigital number, since it uses as much as digits as its factorization.

200200312031081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 200200312031081 its reverse (180130213002002), we get a palindrome (380330525033083).

The spelling of 200200312031081 in words is "two hundred trillion, two hundred billion, three hundred twelve million, thirty-one thousand, eighty-one".