42344000031 has 4 divisors (see below), whose sum is σ = 56458666712. Its totient is φ = 28229333352.

The previous prime is 42344000003. The next prime is 42344000033. The reversal of 42344000031 is 13000044324.

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

It is not a de Polignac number, because 42344000031 - 2²¹ = 42341902879 is a prime.

It is a super-2 number, since 2×42344000031² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42343999971 and 42344000007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42344000033) 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, 7057333336 + ... + 7057333341.

It is an arithmetic number, because the mean of its divisors is an integer number (14114666678).

Almost surely, 2^42344000031 is an apocalyptic number.

42344000031 is a deficient number, since it is larger than the sum of its proper divisors (14114666681).

42344000031 is a wasteful number, since it uses less digits than its factorization.

42344000031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14114666680.

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

Adding to 42344000031 its reverse (13000044324), we get a palindrome (55344044355).

The spelling of 42344000031 in words is "forty-two billion, three hundred forty-four million, thirty-one", and thus it is an aban number.