31442104042443 has 24 divisors (see below), whose sum is σ = 45841356789696. Its totient is φ = 20765260652400.

The previous prime is 31442104042423. The next prime is 31442104042451. The reversal of 31442104042443 is 34424040124413.

31442104042443 is a `hidden beast` number, since 3 + 1 + 4 + 4 + 2 + 1 + 0 + 404 + 244 + 3 = 666.

It is not a de Polignac number, because 31442104042443 - 2⁶ = 31442104042379 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31442104042398 and 31442104042407.

It is not an unprimeable number, because it can be changed into a prime (31442104042423) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 127311388 + ... + 127558118.

It is an arithmetic number, because the mean of its divisors is an integer number (1910056532904).

Almost surely, 2^{31442104042443} is an apocalyptic number.

31442104042443 is a deficient number, since it is larger than the sum of its proper divisors (14399252747253).

31442104042443 is a wasteful number, since it uses less digits than its factorization.

31442104042443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 379175 (or 379172 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 36.

Adding to 31442104042443 its reverse (34424040124413), we get a palindrome (65866144166856).

The spelling of 31442104042443 in words is "thirty-one trillion, four hundred forty-two billion, one hundred four million, forty-two thousand, four hundred forty-three".