42140434023 has 6 divisors (see below), whose sum is σ = 60869515824. Its totient is φ = 28093622676.

The previous prime is 42140433961. The next prime is 42140434027. The reversal of 42140434023 is 32043404124.

It is a happy number.

42140434023 is a `hidden beast` number, since 4 + 214 + 0 + 43 + 402 + 3 = 666.

It is not a de Polignac number, because 42140434023 - 2³³ = 33550499431 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42140434027) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2341135215 + ... + 2341135232.

It is an arithmetic number, because the mean of its divisors is an integer number (10144919304).

Almost surely, 2^42140434023 is an apocalyptic number.

42140434023 is a deficient number, since it is larger than the sum of its proper divisors (18729081801).

42140434023 is a wasteful number, since it uses less digits than its factorization.

42140434023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4682270453 (or 4682270450 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

Adding to 42140434023 its reverse (32043404124), we get a palindrome (74183838147).

The spelling of 42140434023 in words is "forty-two billion, one hundred forty million, four hundred thirty-four thousand, twenty-three".