42142030423 has 2 divisors, whose sum is σ = 42142030424. Its totient is φ = 42142030422.

The previous prime is 42142030373. The next prime is 42142030487. The reversal of 42142030423 is 32403024124.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42142030423 - 2¹⁷ = 42141899351 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42142031423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21071015211 + 21071015212.

It is an arithmetic number, because the mean of its divisors is an integer number (21071015212).

Almost surely, 2^42142030423 is an apocalyptic number.

42142030423 is a deficient number, since it is larger than the sum of its proper divisors (1).

42142030423 is an equidigital number, since it uses as much as digits as its factorization.

42142030423 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 42142030423 its reverse (32403024124), we get a palindrome (74545054547).

The spelling of 42142030423 in words is "forty-two billion, one hundred forty-two million, thirty thousand, four hundred twenty-three".