31431122443141 has 16 divisors (see below), whose sum is σ = 32899464480960. Its totient is φ = 30000913488000.

The previous prime is 31431122443139. The next prime is 31431122443151. The reversal of 31431122443141 is 14134422113413.

It is a cyclic number.

It is not a de Polignac number, because 31431122443141 - 2¹ = 31431122443139 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31431122443097 and 31431122443106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31431122443151) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26901336 + ... + 28045393.

It is an arithmetic number, because the mean of its divisors is an integer number (2056216530060).

Almost surely, 2^{31431122443141} is an apocalyptic number.

It is an amenable number.

31431122443141 is a deficient number, since it is larger than the sum of its proper divisors (1468342037819).

31431122443141 is a wasteful number, since it uses less digits than its factorization.

31431122443141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54947076.

The product of its digits is 27648, while the sum is 34.

Adding to 31431122443141 its reverse (14134422113413), we get a palindrome (45565544556554).

The spelling of 31431122443141 in words is "thirty-one trillion, four hundred thirty-one billion, one hundred twenty-two million, four hundred forty-three thousand, one hundred forty-one".