42423231022 has 4 divisors (see below), whose sum is σ = 63634846536. Its totient is φ = 21211615510.

The previous prime is 42423231017. The next prime is 42423231029. The reversal of 42423231022 is 22013232424.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42423231029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10605807754 + ... + 10605807757.

It is an arithmetic number, because the mean of its divisors is an integer number (15908711634).

Almost surely, 2^42423231022 is an apocalyptic number.

42423231022 is a deficient number, since it is larger than the sum of its proper divisors (21211615514).

42423231022 is a wasteful number, since it uses less digits than its factorization.

42423231022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21211615513.

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

Adding to 42423231022 its reverse (22013232424), we get a palindrome (64436463446).

The spelling of 42423231022 in words is "forty-two billion, four hundred twenty-three million, two hundred thirty-one thousand, twenty-two".