42010109023 has 2 divisors, whose sum is σ = 42010109024. Its totient is φ = 42010109022.

The previous prime is 42010109003. The next prime is 42010109047. The reversal of 42010109023 is 32090101024.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42010109023 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42010108985 and 42010109003.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42010109003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21005054511 + 21005054512.

It is an arithmetic number, because the mean of its divisors is an integer number (21005054512).

Almost surely, 2^42010109023 is an apocalyptic number.

42010109023 is a deficient number, since it is larger than the sum of its proper divisors (1).

42010109023 is an equidigital number, since it uses as much as digits as its factorization.

42010109023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 22.

The spelling of 42010109023 in words is "forty-two billion, ten million, one hundred nine thousand, twenty-three".