42104102393 has 2 divisors, whose sum is σ = 42104102394. Its totient is φ = 42104102392.

The previous prime is 42104102389. The next prime is 42104102459. The reversal of 42104102393 is 39320140124.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27135313984 + 14968788409 = 164728^2 + 122347^2 .

It is a cyclic number.

It is not a de Polignac number, because 42104102393 - 2² = 42104102389 is a prime.

It is not a weakly prime, because it can be changed into another prime (42104102093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21052051196 + 21052051197.

It is an arithmetic number, because the mean of its divisors is an integer number (21052051197).

Almost surely, 2^42104102393 is an apocalyptic number.

It is an amenable number.

42104102393 is a deficient number, since it is larger than the sum of its proper divisors (1).

42104102393 is an equidigital number, since it uses as much as digits as its factorization.

42104102393 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 29.

The spelling of 42104102393 in words is "forty-two billion, one hundred four million, one hundred two thousand, three hundred ninety-three".