42002431023 has 16 divisors (see below), whose sum is σ = 65052947456. Its totient is φ = 23607923040.

The previous prime is 42002431013. The next prime is 42002431027. The reversal of 42002431023 is 32013420024.

It is not a de Polignac number, because 42002431023 - 2⁹ = 42002430511 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42002431027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16393111 + ... + 16395672.

It is an arithmetic number, because the mean of its divisors is an integer number (4065809216).

Almost surely, 2^42002431023 is an apocalyptic number.

42002431023 is a deficient number, since it is larger than the sum of its proper divisors (23050516433).

42002431023 is a wasteful number, since it uses less digits than its factorization.

42002431023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32788854.

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 42002431023 its reverse (32013420024), we get a palindrome (74015851047).

The spelling of 42002431023 in words is "forty-two billion, two million, four hundred thirty-one thousand, twenty-three".