42103421323 has 2 divisors, whose sum is σ = 42103421324. Its totient is φ = 42103421322.

The previous prime is 42103421309. The next prime is 42103421341. The reversal of 42103421323 is 32312430124.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42103421323 is a prime.

It is not a weakly prime, because it can be changed into another prime (42103421923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21051710661 + 21051710662.

It is an arithmetic number, because the mean of its divisors is an integer number (21051710662).

Almost surely, 2^42103421323 is an apocalyptic number.

42103421323 is a deficient number, since it is larger than the sum of its proper divisors (1).

42103421323 is an equidigital number, since it uses as much as digits as its factorization.

42103421323 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 42103421323 its reverse (32312430124), we get a palindrome (74415851447).

The spelling of 42103421323 in words is "forty-two billion, one hundred three million, four hundred twenty-one thousand, three hundred twenty-three".