42252240031 has 4 divisors (see below), whose sum is σ = 42347617992. Its totient is φ = 42156862072.

The previous prime is 42252240029. The next prime is 42252240049. The reversal of 42252240031 is 13004225224.

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 42252240031 - 2¹ = 42252240029 is a prime.

It is a super-2 number, since 2×42252240031² (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 = 42252239978 and 42252240005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42252240001) 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, 47688316 + ... + 47689201.

It is an arithmetic number, because the mean of its divisors is an integer number (10586904498).

Almost surely, 2^42252240031 is an apocalyptic number.

42252240031 is a deficient number, since it is larger than the sum of its proper divisors (95377961).

42252240031 is an equidigital number, since it uses as much as digits as its factorization.

42252240031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95377960.

The product of its (nonzero) digits is 3840, while the sum is 25.

Adding to 42252240031 its reverse (13004225224), we get a palindrome (55256465255).

The spelling of 42252240031 in words is "forty-two billion, two hundred fifty-two million, two hundred forty thousand, thirty-one".