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100131000251 is a prime number
BaseRepresentation
bin101110101000001000…
…1011100111110111011
3100120110022010211210212
41131100101130332323
53120032014002001
6113555522501335
710143224313302
oct1352021347673
9316408124725
10100131000251
1139513380577
12174a580484b
1395999b8599
144bbc601439
1529109b47bb
hex175045cfbb

100131000251 has 2 divisors, whose sum is σ = 100131000252. Its totient is φ = 100131000250.

The previous prime is 100131000209. The next prime is 100131000253. The reversal of 100131000251 is 152000131001.

It is a strong prime.

It is an emirp because it is prime and its reverse (152000131001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 100131000251 - 26 = 100131000187 is a prime.

It is a super-2 number, since 2×1001310002512 (a number of 23 digits) contains 22 as substring.

Together with 100131000253, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (100131000253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50065500125 + 50065500126.

It is an arithmetic number, because the mean of its divisors is an integer number (50065500126).

Almost surely, 2100131000251 is an apocalyptic number.

100131000251 is a deficient number, since it is larger than the sum of its proper divisors (1).

100131000251 is an equidigital number, since it uses as much as digits as its factorization.

100131000251 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30, while the sum is 14.

Adding to 100131000251 its reverse (152000131001), we get a palindrome (252131131252).

The spelling of 100131000251 in words is "one hundred billion, one hundred thirty-one million, two hundred fifty-one", and thus it is an aban number.