242440000031 has 4 divisors (see below), whose sum is σ = 247598297952. Its totient is φ = 237281702112.

The previous prime is 242440000003. The next prime is 242440000039. The reversal of 242440000031 is 130000044242.

242440000031 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 242440000031 - 2³⁴ = 225260130847 is a prime.

It is a super-2 number, since 2×242440000031² (a number of 24 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 = 242439999958 and 242440000012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242440000039) 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 3 ways as a sum of consecutive naturals, for example, 2579148890 + ... + 2579148983.

It is an arithmetic number, because the mean of its divisors is an integer number (61899574488).

Almost surely, 2^242440000031 is an apocalyptic number.

242440000031 is a deficient number, since it is larger than the sum of its proper divisors (5158297921).

242440000031 is an equidigital number, since it uses as much as digits as its factorization.

242440000031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5158297920.

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 242440000031 its reverse (130000044242), we get a palindrome (372440044273).

The spelling of 242440000031 in words is "two hundred forty-two billion, four hundred forty million, thirty-one", and thus it is an aban number.