100121343211 has 4 divisors (see below), whose sum is σ = 100148399424. Its totient is φ = 100094287000.

The previous prime is 100121343181. The next prime is 100121343241. The reversal of 100121343211 is 112343121001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 112343121001 = 266411 ⋅421691.

It is an interprime number because it is at equal distance from previous prime (100121343181) and next prime (100121343241).

It is a cyclic number.

It is not a de Polignac number, because 100121343211 - 2²³ = 100112954603 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100121343241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13522555 + ... + 13529956.

It is an arithmetic number, because the mean of its divisors is an integer number (25037099856).

Almost surely, 2^100121343211 is an apocalyptic number.

100121343211 is a deficient number, since it is larger than the sum of its proper divisors (27056213).

100121343211 is an equidigital number, since it uses as much as digits as its factorization.

100121343211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27056212.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 100121343211 its reverse (112343121001), we get a palindrome (212464464212).

The spelling of 100121343211 in words is "one hundred billion, one hundred twenty-one million, three hundred forty-three thousand, two hundred eleven".