104521230493 has 2 divisors, whose sum is σ = 104521230494. Its totient is φ = 104521230492.

The previous prime is 104521230479. The next prime is 104521230557. The reversal of 104521230493 is 394032125401.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 102924189124 + 1597041369 = 320818^2 + 39963^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-104521230493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (104521230293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52260615246 + 52260615247.

It is an arithmetic number, because the mean of its divisors is an integer number (52260615247).

Almost surely, 2^104521230493 is an apocalyptic number.

It is an amenable number.

104521230493 is a deficient number, since it is larger than the sum of its proper divisors (1).

104521230493 is an equidigital number, since it uses as much as digits as its factorization.

104521230493 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25920, while the sum is 34.

Adding to 104521230493 its reverse (394032125401), we get a palindrome (498553355894).

The spelling of 104521230493 in words is "one hundred four billion, five hundred twenty-one million, two hundred thirty thousand, four hundred ninety-three".