442131318031 has 8 divisors (see below), whose sum is σ = 476933676464. Its totient is φ = 407442139200.

The previous prime is 442131318029. The next prime is 442131318059. The reversal of 442131318031 is 130813131244.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 442131318031 - 2¹ = 442131318029 is a prime.

It is a super-2 number, since 2×442131318031² (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 = 442131317984 and 442131318002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442131118031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28286781 + ... + 28302406.

It is an arithmetic number, because the mean of its divisors is an integer number (59616709558).

Almost surely, 2^442131318031 is an apocalyptic number.

442131318031 is a deficient number, since it is larger than the sum of its proper divisors (34802358433).

442131318031 is a wasteful number, since it uses less digits than its factorization.

442131318031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56589801.

The product of its (nonzero) digits is 6912, while the sum is 31.

Adding to 442131318031 its reverse (130813131244), we get a palindrome (572944449275).

It can be divided in two parts, 4421313 and 18031, that added together give a palindrome (4439344).

The spelling of 442131318031 in words is "four hundred forty-two billion, one hundred thirty-one million, three hundred eighteen thousand, thirty-one".