100121102143 has 4 divisors (see below), whose sum is σ = 100138132528. Its totient is φ = 100104071760.

The previous prime is 100121102111. The next prime is 100121102153. The reversal of 100121102143 is 341201121001.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 100121102143 - 2⁵ = 100121102111 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 (100121102153) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8506371 + ... + 8518132.

It is an arithmetic number, because the mean of its divisors is an integer number (25034533132).

Almost surely, 2^100121102143 is an apocalyptic number.

100121102143 is a deficient number, since it is larger than the sum of its proper divisors (17030385).

100121102143 is an equidigital number, since it uses as much as digits as its factorization.

100121102143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17030384.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 100121102143 its reverse (341201121001), we get a palindrome (441322223144).

The spelling of 100121102143 in words is "one hundred billion, one hundred twenty-one million, one hundred two thousand, one hundred forty-three".