42232443031 has 4 divisors (see below), whose sum is σ = 43688734200. Its totient is φ = 40776151864.

The previous prime is 42232443007. The next prime is 42232443047. The reversal of 42232443031 is 13034423224.

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

It is a cyclic number.

It is not a de Polignac number, because 42232443031 - 2¹⁵ = 42232410263 is a prime.

It is a super-2 number, since 2×42232443031² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42232443061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 728145541 + ... + 728145598.

It is an arithmetic number, because the mean of its divisors is an integer number (10922183550).

Almost surely, 2^42232443031 is an apocalyptic number.

42232443031 is a deficient number, since it is larger than the sum of its proper divisors (1456291169).

42232443031 is a wasteful number, since it uses less digits than its factorization.

42232443031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1456291168.

The product of its (nonzero) digits is 13824, while the sum is 28.

Adding to 42232443031 its reverse (13034423224), we get a palindrome (55266866255).

The spelling of 42232443031 in words is "forty-two billion, two hundred thirty-two million, four hundred forty-three thousand, thirty-one".