100104111421 has 2 divisors, whose sum is σ = 100104111422. Its totient is φ = 100104111420.

The previous prime is 100104111347. The next prime is 100104111461. The reversal of 100104111421 is 124111401001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 95409943225 + 4694168196 = 308885^2 + 68514^2 .

It is a cyclic number.

It is not a de Polignac number, because 100104111421 - 2²⁷ = 99969893693 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 100104111395 and 100104111404.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100104111461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50052055710 + 50052055711.

It is an arithmetic number, because the mean of its divisors is an integer number (50052055711).

Almost surely, 2^100104111421 is an apocalyptic number.

It is an amenable number.

100104111421 is a deficient number, since it is larger than the sum of its proper divisors (1).

100104111421 is an equidigital number, since it uses as much as digits as its factorization.

100104111421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 100104111421 its reverse (124111401001), we get a palindrome (224215512422).

The spelling of 100104111421 in words is "one hundred billion, one hundred four million, one hundred eleven thousand, four hundred twenty-one".