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100131000971 is a prime number
BaseRepresentation
bin101110101000001000…
…1011101001010001011
3100120110022010212210112
41131100101131022023
53120032014012341
6113555522504535
710143224315351
oct1352021351213
9316408125715
10100131000971
1139513381071
12174a580514b
1395999b8a01
144bbc6017d1
1529109b4aeb
hex175045d28b

100131000971 has 2 divisors, whose sum is σ = 100131000972. Its totient is φ = 100131000970.

The previous prime is 100131000923. The next prime is 100131000979. The reversal of 100131000971 is 179000131001.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-100131000971 is a prime.

It is not a weakly prime, because it can be changed into another prime (100131000979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50065500485 + 50065500486.

It is an arithmetic number, because the mean of its divisors is an integer number (50065500486).

Almost surely, 2100131000971 is an apocalyptic number.

100131000971 is a deficient number, since it is larger than the sum of its proper divisors (1).

100131000971 is an equidigital number, since it uses as much as digits as its factorization.

100131000971 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 189, while the sum is 23.

Adding to 100131000971 its reverse (179000131001), we get a palindrome (279131131972).

The spelling of 100131000971 in words is "one hundred billion, one hundred thirty-one million, nine hundred seventy-one", and thus it is an aban number.