104451433421 has 2 divisors, whose sum is σ = 104451433422. Its totient is φ = 104451433420.

The previous prime is 104451433409. The next prime is 104451433423. The reversal of 104451433421 is 124334154401.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 90102028900 + 14349404521 = 300170^2 + 119789^2 .

It is a cyclic number.

It is not a de Polignac number, because 104451433421 - 2¹⁸ = 104451171277 is a prime.

Together with 104451433423, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (104451433423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52225716710 + 52225716711.

It is an arithmetic number, because the mean of its divisors is an integer number (52225716711).

Almost surely, 2^104451433421 is an apocalyptic number.

It is an amenable number.

104451433421 is a deficient number, since it is larger than the sum of its proper divisors (1).

104451433421 is an equidigital number, since it uses as much as digits as its factorization.

104451433421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23040, while the sum is 32.

Adding to 104451433421 its reverse (124334154401), we get a palindrome (228785587822).

The spelling of 104451433421 in words is "one hundred four billion, four hundred fifty-one million, four hundred thirty-three thousand, four hundred twenty-one".