31131422441 has 8 divisors (see below), whose sum is σ = 35579974080. Its totient is φ = 26683172208.

The previous prime is 31131422359. The next prime is 31131422501. The reversal of 31131422441 is 14422413113.

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

It is not a de Polignac number, because 31131422441 - 2¹⁰ = 31131421417 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 31131422441.

It is not an unprimeable number, because it can be changed into a prime (31131421441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 226730 + ... + 337148.

It is an arithmetic number, because the mean of its divisors is an integer number (4447496760).

Almost surely, 2^31131422441 is an apocalyptic number.

It is an amenable number.

31131422441 is a deficient number, since it is larger than the sum of its proper divisors (4448551639).

31131422441 is a wasteful number, since it uses less digits than its factorization.

31131422441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150703.

The product of its digits is 2304, while the sum is 26.

Adding to 31131422441 its reverse (14422413113), we get a palindrome (45553835554).

The spelling of 31131422441 in words is "thirty-one billion, one hundred thirty-one million, four hundred twenty-two thousand, four hundred forty-one".