42004101023 has 2 divisors, whose sum is σ = 42004101024. Its totient is φ = 42004101022.

The previous prime is 42004100981. The next prime is 42004101071. The reversal of 42004101023 is 32010140024.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42004101023 - 2¹⁸ = 42003838879 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42004100992 and 42004101010.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42004107023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21002050511 + 21002050512.

It is an arithmetic number, because the mean of its divisors is an integer number (21002050512).

Almost surely, 2^42004101023 is an apocalyptic number.

42004101023 is a deficient number, since it is larger than the sum of its proper divisors (1).

42004101023 is an equidigital number, since it uses as much as digits as its factorization.

42004101023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 42004101023 its reverse (32010140024), we get a palindrome (74014241047).

The spelling of 42004101023 in words is "forty-two billion, four million, one hundred one thousand, twenty-three".