31406126712144 has 20 divisors (see below), whose sum is σ = 81132494006496. Its totient is φ = 10468708904032.

The previous prime is 31406126712127. The next prime is 31406126712157. The reversal of 31406126712144 is 44121762160413.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 31406126712096 and 31406126712105.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 327147153204 + ... + 327147153299.

Almost surely, 2^{31406126712144} is an apocalyptic number.

It is an amenable number.

31406126712144 is an abundant number, since it is smaller than the sum of its proper divisors (49726367294352).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31406126712144 is a wasteful number, since it uses less digits than its factorization.

31406126712144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 654294306514 (or 654294306508 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 42.

Adding to 31406126712144 its reverse (44121762160413), we get a palindrome (75527888872557).

The spelling of 31406126712144 in words is "thirty-one trillion, four hundred six billion, one hundred twenty-six million, seven hundred twelve thousand, one hundred forty-four".