104140334021 has 2 divisors, whose sum is σ = 104140334022. Its totient is φ = 104140334020.

The previous prime is 104140333937. The next prime is 104140334033. The reversal of 104140334021 is 120433041401.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 97493193121 + 6647140900 = 312239^2 + 81530^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-104140334021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (104140334071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52070167010 + 52070167011.

It is an arithmetic number, because the mean of its divisors is an integer number (52070167011).

Almost surely, 2^104140334021 is an apocalyptic number.

It is an amenable number.

104140334021 is a deficient number, since it is larger than the sum of its proper divisors (1).

104140334021 is an equidigital number, since it uses as much as digits as its factorization.

104140334021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 104140334021 its reverse (120433041401), we get a palindrome (224573375422).

The spelling of 104140334021 in words is "one hundred four billion, one hundred forty million, three hundred thirty-four thousand, twenty-one".