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100121011 is a prime number
BaseRepresentation
bin1011111011110…
…11100110110011
320222101200012121
411331323212303
5201112333021
613533535111
72324004664
oct575734663
9228350177
10100121011
1151574441
1229644497
1317986903
14d42336b
158bca741
hex5f7b9b3

100121011 has 2 divisors, whose sum is σ = 100121012. Its totient is φ = 100121010.

The previous prime is 100120987. The next prime is 100121023. The reversal of 100121011 is 110121001.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 100121011 - 27 = 100120883 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 100120985 and 100121003.

It is not a weakly prime, because it can be changed into another prime (100121111) 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 as a sum of consecutive naturals, namely, 50060505 + 50060506.

It is an arithmetic number, because the mean of its divisors is an integer number (50060506).

Almost surely, 2100121011 is an apocalyptic number.

100121011 is a deficient number, since it is larger than the sum of its proper divisors (1).

100121011 is an equidigital number, since it uses as much as digits as its factorization.

100121011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2, while the sum is 7.

The square root of 100121011 is about 10006.0487206489. The cubic root of 100121011 is about 464.3460356587.

Adding to 100121011 its reverse (110121001), we get a palindrome (210242012).

The spelling of 100121011 in words is "one hundred million, one hundred twenty-one thousand, eleven".