100121017 has 4 divisors (see below), whose sum is σ = 100172160. Its totient is φ = 100069876.

The previous prime is 100121011. The next prime is 100121023. The reversal of 100121017 is 710121001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (100121011) and next prime (100121023).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100121017 is a prime.

It is a super-2 number, since 2×100121017² = 20048436090228578, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100120988 and 100121006.

It is not an unprimeable number, because it can be changed into a prime (100121011) 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 3 ways as a sum of consecutive naturals, for example, 22513 + ... + 26590.

It is an arithmetic number, because the mean of its divisors is an integer number (25043040).

Almost surely, 2^100121017 is an apocalyptic number.

It is an amenable number.

100121017 is a deficient number, since it is larger than the sum of its proper divisors (51143).

100121017 is an equidigital number, since it uses as much as digits as its factorization.

100121017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51142.

The product of its (nonzero) digits is 14, while the sum is 13.

The square root of 100121017 is about 10006.0490204676. The cubic root of 100121017 is about 464.3460449344.

Adding to 100121017 its reverse (710121001), we get a palindrome (810242018).

The spelling of 100121017 in words is "one hundred million, one hundred twenty-one thousand, seventeen".