42142031023 has 2 divisors, whose sum is σ = 42142031024. Its totient is φ = 42142031022.

The previous prime is 42142031021. The next prime is 42142031069. The reversal of 42142031023 is 32013024124.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42142031023 - 2¹ = 42142031021 is a prime.

Together with 42142031021, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 42142030985 and 42142031003.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42142031021) 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, 21071015511 + 21071015512.

It is an arithmetic number, because the mean of its divisors is an integer number (21071015512).

Almost surely, 2^42142031023 is an apocalyptic number.

42142031023 is a deficient number, since it is larger than the sum of its proper divisors (1).

42142031023 is an equidigital number, since it uses as much as digits as its factorization.

42142031023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 42142031023 its reverse (32013024124), we get a palindrome (74155055147).

The spelling of 42142031023 in words is "forty-two billion, one hundred forty-two million, thirty-one thousand, twenty-three".