100121323111 has 8 divisors (see below), whose sum is σ = 100297820160. Its totient is φ = 99944914872.

The previous prime is 100121323073. The next prime is 100121323147. The reversal of 100121323111 is 111323121001.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100121323111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100121323411) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2479066 + ... + 2519128.

It is an arithmetic number, because the mean of its divisors is an integer number (12537227520).

Almost surely, 2^100121323111 is an apocalyptic number.

100121323111 is a deficient number, since it is larger than the sum of its proper divisors (176497049).

100121323111 is an equidigital number, since it uses as much as digits as its factorization.

100121323111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44405.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 100121323111 its reverse (111323121001), we get a palindrome (211444444112).

The spelling of 100121323111 in words is "one hundred billion, one hundred twenty-one million, three hundred twenty-three thousand, one hundred eleven".