104342555421 has 12 divisors (see below), whose sum is σ = 162310641948. Its totient is φ = 64210803264.

The previous prime is 104342555419. The next prime is 104342555423. The reversal of 104342555421 is 124555243401.

104342555421 is a `hidden beast` number, since 1 + 0 + 43 + 42 + 5 + 554 + 21 = 666.

It is an interprime number because it is at equal distance from previous prime (104342555419) and next prime (104342555423).

It can be written as a sum of positive squares in 2 ways, for example, as 67397871321 + 36944684100 = 259611^2 + 192210^2 .

It is not a de Polignac number, because 104342555421 - 2¹ = 104342555419 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104342555423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 445908240 + ... + 445908473.

It is an arithmetic number, because the mean of its divisors is an integer number (13525886829).

Almost surely, 2^104342555421 is an apocalyptic number.

It is an amenable number.

104342555421 is a deficient number, since it is larger than the sum of its proper divisors (57968086527).

104342555421 is a wasteful number, since it uses less digits than its factorization.

104342555421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 891816732 (or 891816729 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 36.

Adding to 104342555421 its reverse (124555243401), we get a palindrome (228897798822).

The spelling of 104342555421 in words is "one hundred four billion, three hundred forty-two million, five hundred fifty-five thousand, four hundred twenty-one".