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200231232131 = 7125172285249
BaseRepresentation
bin1011101001111010110…
…1100010001010000011
3201010211110101111100102
42322132231202022003
511240033143412011
6231552430113015
720315626251110
oct2723655421203
9633743344312
10200231232131
1177a10346337
123298104b76b
1315b601c0218
149996ab3907
15531d8ec73b
hex2e9eb62283

200231232131 has 8 divisors (see below), whose sum is σ = 228854076000. Its totient is φ = 171612983808.

The previous prime is 200231232101. The next prime is 200231232167. The reversal of 200231232131 is 131232132002.

200231232131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 200231232131 - 218 = 200230969987 is a prime.

It is a super-3 number, since 3×2002312321313 (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (200231232101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1055006 + ... + 1230243.

It is an arithmetic number, because the mean of its divisors is an integer number (28606759500).

Almost surely, 2200231232131 is an apocalyptic number.

200231232131 is a deficient number, since it is larger than the sum of its proper divisors (28622843869).

200231232131 is a wasteful number, since it uses less digits than its factorization.

200231232131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2297773.

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

Adding to 200231232131 its reverse (131232132002), we get a palindrome (331463364133).

The spelling of 200231232131 in words is "two hundred billion, two hundred thirty-one million, two hundred thirty-two thousand, one hundred thirty-one".

Divisors: 1 7 12517 87619 2285249 15996743 28604461733 200231232131