42042540223 has 2 divisors, whose sum is σ = 42042540224. Its totient is φ = 42042540222.

The previous prime is 42042540179. The next prime is 42042540283. The reversal of 42042540223 is 32204524024.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42042540223 - 2¹³ = 42042532031 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42042540191 and 42042540200.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42042540283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21021270111 + 21021270112.

It is an arithmetic number, because the mean of its divisors is an integer number (21021270112).

Almost surely, 2^42042540223 is an apocalyptic number.

42042540223 is a deficient number, since it is larger than the sum of its proper divisors (1).

42042540223 is an equidigital number, since it uses as much as digits as its factorization.

42042540223 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15360, while the sum is 28.

The spelling of 42042540223 in words is "forty-two billion, forty-two million, five hundred forty thousand, two hundred twenty-three".